The P-Block Elements (XII)

Given below are two statements:

Statement I : The increasing order of boiling point of hydrogen halides is HCl < HBr < HI < HF.

Statement II : The increasing order of melting point of hydrogen halides is HCl < HBr < HF < HI.

In the light of the above statements, choose the correct answer from the options given below:

A molecule with the formula \({\mathrm{AX}}_{4}\mathrm{Y}\)has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among A, X and Y. Elements X and Y have first and second highest electronegativity values respectively among all the known elements. The shape of the molecule is :

[JEE Main 2025, 2 Apr (Shift 1)]

The complete hydrolysis of \(\mathrm{ICl},{\mathrm{ClF}}_{3}\), and \({\mathrm{BrF}}_{5}\) respectively gives

[JEE Advanced 2025, Paper-2]

Superacidity of \({\mathrm{HSO}}_{3}\mathrm{F}+{\mathrm{SbF}}_{5}\) is due to:

Memory Based Question 29/Jan/25 Evening shift

Element not showing variable oxidation state:

(Memory Based JEE Mains 22/01/2025 ,Shift -1)

Which of the following group-15 element forms \(p\pi -p\pi\) bond and strongest basic hydride? (memory based jee mains shift-2 28/01/2025)

The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are

A 'p'-block element (E) and hydrogen form a binary cation \({\left({\text{EH}}_{\text{x}}\right)}^{+}\), while EH₃ on treatment with K₂HgI₄ in alkaline medium gives a precipitate of basic mercury(II) amido-iodine. Given below are first ionisation enthalpy values \(\left({\text{kJmol}}^{−1}\right)\) for first element each from group 13, 14, 15 and 16. Identify the correct first ionisation enthalpy value for element E.

[JEE Main 2026, 22 Jan (Shift 2)]

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (\({\mathrm{HNO}}_{2}\)) gives the species

Incorrect Statement among the following is (JEE mains memory based shift-1 23/01/2025)

Elements X and Y belong to Group 15. The difference between the electronegativity values of 'X' and phosphorus is higher than that of the difference between phosphorus and 'Y'. 'X' & 'Y' are respectively

[JEE Main 2026, 23 Jan (Shift 2)]

Given below are two statements:

Statement I: C < O < N < F is the correct order in terms of first ionization enthalpy values.

Statement II: S > Se > Te > Po > O is the correct order in terms of the magnitude of electron gain enthalpy values.

In the light of the above statements, choose the correct answer from the options given bleow:

[JEE Main 2026, 22 Jan (Shift 2)]

The property/properties that show irregularity in first four elements of group-17 is/are :
(A) Covalent radius
(B) Electron affinity
(C) Ionic radius
(D) First ionization energy
Choose the correct answer from the options given below:

[JEE Main 2025, 2 Apr (Shift 1)]

The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of

[JEE Main 2025, 24 Jan (Shift 1)]

Given below are two statements :
Statement I : \({\mathrm{H}}_{2}\mathrm{Se}\) is more acidic than \({\mathrm{H}}_{2}\mathrm{Te}\).
Statement II : \({\mathrm{H}}_{2}\mathrm{Se}\) has higher bond enthalpy for dissociation than \({\mathrm{H}}_{2}\mathrm{Te}\).
In the light of the above statements, choose the correct answer from the options given below.

[JEE Main 2025, 8 Apr (Shift 1)]

The nature of oxide \(\left({\mathrm{TeO}}_{2}\right)\) and hydride \(\left({\mathrm{TeH}}_{2}\right)\) formed by Te , respectively are

[JEE Main 2025, 2 Apr (Shift 2)]

The complete hydrolysis of \(\mathrm{ICl},{\mathrm{ClF}}_{3}\), and \({\mathrm{BrF}}_{5}\) respectively gives

Element not showing variable oxidation state? (memory based jee mains shift-1 22/01/2025)

Element not showing variable oxidation state is :

[JEE Main 2024, 27 Jan (Shift 1)]

Element not showing variable oxidation state is :

[JEE Main 2024, 27 Jan (Shift 1)]

Anomalous behaviour of oxygen is due to its

[JEE Main 2024, 29 Jan (Shift 2)]

Anomalous behaviour of oxygen is due to its

[JEE Main 2024, 29 Jan (Shift 2)]

Given below are two statements

Statement (I) : Oxygen being the first member of group 16 exhibits only -2 oxidation state.

Statement (II) : Down the group 16 stability of +4 oxidation state decreases and +6 oxidation state increases.

In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2024, 27 Jan (Shift 2)]

Given below are two statements

Statement (I) : Oxygen being the first member of group 16 exhibits only -2 oxidation state.

Statement (II) : Down the group 16 stability of +4 oxidation state decreases and +6 oxidation state increases.

In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2024, 27 Jan (Shift 2)]

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: \(H _2 Te\) is more acidic than \(H _2 S\).
Reason R: Bond dissociation enthalpy of \(H _2 Te\) is lower than \(H _2 S\).
In the light of the above statements, choose the most appropriate from the options given below:

[JEE Main 2024, 30 Jan (Shift 2)]

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: \(H _2 Te\) is more acidic than \(H _2 S\).
Reason R: Bond dissociation enthalpy of \(H _2 Te\) is lower than \(H _2 S\).
In the light of the above statements, choose the most appropriate from the options given below:

[JEE Main 2024, 30 Jan (Shift 2)]

The incorrect statement among the following is

[JEE Main 2025, 23 Jan (Shift 1)]

Choose the correct statements about the hydrides of group 15 elements

A. The stability of the hydrides decreases in the order \(NH _3> PH _3> AsH _3>\) \(SbH _3> BiH _3\).
B. The reducing ability of the hydride increases in the order \(NH _3< PH _3< AsH _3\) \(< SbH _3< BiH _3\).
C. Among the hydrides, \(NH _3\) is strong reducing agent while \(BiH _3\) is mild reducing agent.
D. The basicity of the hydrides increases in the order \(NH _3< PH _3< AsH _3<\) \(SbH _3< BiH _3\).

Choose the most appropriate from the options given below

[JEE Main 2024, 30 Jan (Shift 2)]

Choose the correct statements about the hydrides of group 15 elements

A. The stability of the hydrides decreases in the order \(NH _3> PH _3> AsH _3>\) \(SbH _3> BiH _3\).
B. The reducing ability of the hydride increases in the order \(NH _3< PH _3< AsH _3\) \(< SbH _3< BiH _3\).
C. Among the hydrides, \(NH _3\) is strong reducing agent while \(BiH _3\) is mild reducing agent.
D. The basicity of the hydrides increases in the order \(NH _3< PH _3< AsH _3<\) \(SbH _3< BiH _3\).

Choose the most appropriate from the options given below

[JEE Main 2024, 30 Jan (Shift 2)]

Which element in group-15 has lowest ionisation energy?

Memory Based Question 29/Jan/25 Evening shift

First ionisation enthalpy values of first four group 15 elements are given below. Choose the correct value for the element that is a main component of apatite family :

[JEE Main 2025, 29 Jan (Shift 2)]

Given below are two statements:
Statement I: \(N \left( CH _3\right)_3\) and \(P \left( CH _3\right)_3\) can act as ligands to form transition metal complexes.
Statement II: As \(\mathrm{N}\) and \(\mathrm{P}\) are from same group, the nature of bonding of \(N \left( CH _3\right)_3\) and \(P \left( CH _3\right)_3\) is always same with transition metals.

In the light of the above statements, choose the most appropriate answer from the options given below

[JEE Main 2024, 08 Apr (Shift 1)]

Given below are two statements:
Statement I: \(N \left( CH _3\right)_3\) and \(P \left( CH _3\right)_3\) can act as ligands to form transition metal complexes.
Statement II: As \(\mathrm{N}\) and \(\mathrm{P}\) are from same group, the nature of bonding of \(N \left( CH _3\right)_3\) and \(P \left( CH _3\right)_3\) is always same with transition metals.

In the light of the above statements, choose the most appropriate answer from the options given below

[JEE Main 2024, 08 Apr (Shift 1)]

Among the following halogens
\(F _2, Cl _2, Br _2 \text { and } I _2\)

Which can undergo disproportionation reactions?

[JEE Main 2024, 08 Apr (Shift 1)]

Among the following halogens
\(F _2, Cl _2, Br _2 \text { and } I _2\)

Which can undergo disproportionation reactions?

[JEE Main 2024, 08 Apr (Shift 1)]

Element not showing variable oxidation state is :

[JEE Main 2024, 27 Jan (Shift 1)]

Given below are two statements
Statement I : The \(\mathrm{N}-\mathrm{N}\) single bond is weaker and longer than that of \(\mathrm{P}-\mathrm{P}\) single bond
Statement II : Compounds of group 15 elements in \(+3\) oxidation states readily undergo disproportionation reactions.
In the light of above statements, choose the correct answer from the options given below

[JEE Main 2025, 3 Apr (Shift 1)]

Elements X and Y belong to Group 15. The difference between the electronegativity values of 'X' and phosphorus is higher than that of the difference between phosphorus and 'Y'. 'X' & 'Y' are respectively

[JEE Main 2026, 23 Jan (Shift 2)]

Given below are two statements:

Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent radius in its group.

Statement II: A group 15 element's hydride EH₃ has the lowest boiling point among corresponding hydrides of other group 15 elements. The maximum covalency of that element E is 4.

In the light of the above statements, choose the correct answer from the options given below

[JEE Main 2026, 22 Jan (Shift 1)]

Anomalous behavior of oxygen is due to its

[JEE Main 2024, 29 Jan (Shift 2)]

Given below are two statements:

Statement I : The increasing order of boiling point of hydrogen halides is HCl < HBr < HI < HF.

Statement II : The increasing order of melting point of hydrogen halides is HCl < HBr < HF < HI.

In the light of the above statements, choose the correct answer from the options given below:

[JEE Main 2026, 28 Jan (Shift 2)]

A molecule with the formula \({\mathrm{AX}}_{4}\mathrm{Y}\) has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among A, X and Y. Elements X and Y have first and second highest electronegativity values respectively among all the known elements. The shape of the molecule is

The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are

Regarding the hydrides of group 15 elements EH₃ (E = N, P, As, Sb), select the correct statement from the following:

A. The stability of hydrides decreases down the group.

B. The basicity of hydrides decreases down the group.

C. The reducing character increases down the group.

D. The boiling point increases down the group.

Choose the correct answer from the options given below:

[JEE Main 2026, 28 Jan (Shift 1)]

The maximum covalency of a non-metallic group 15 element ' E ' with weakest E-E bond is

[JEE Main 2025, 22 Jan (Shift 2)]

Element not showing variable oxidation state:

(Memory Based JEE Mains 22/01/2025 ,Shift -1)

Given below are two statements:

Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent radius in its group.

Statement II: A group 15 element's hydride EH₃ has the lowest boiling point among corresponding hydrides of other group 15 elements. The maximum covalency of that element E is 4.

In the light of the above statements, choose the correct answer from the options given below

[JEE Main 2026, 22 Jan (Shift 1)]

A 'p'-block element (E) and hydrogen form a binary cation \({\left({\text{EH}}_{\text{x}}\right)}^{+}\), while EH₃ on treatment with K₂HgI₄ in alkaline medium gives a precipitate of basic mercury(II) amido-iodine. Given below are first ionisation enthalpy values \(\left({\text{kJmol}}^{−1}\right)\) for first element each from group 13, 14, 15 and 16. Identify the correct first ionisation enthalpy value for element E.

[JEE Main 2026, 22 Jan (Shift 2)]

Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive nonmetals and highly reactive metals are generally ionic.
(D) The non-metal oxides are generally basic in nature.
(E) The metal oxides are generally acidic or neutral in nature.

Choose the correct answer from the options given below :

[JEE Main 2024, 8 Apr (Shift 2)]

The incorrect statement among the following is

[JEE Main 2025, 23 Jan (Shift 1)]

The nature of oxide \(\left({\mathrm{TeO}}_{2}\right)\) and hydride \(\left({\mathrm{TeH}}_{2}\right)\) formed by Te , respectively are

Regarding the hydrides of group 15 elements EH₃ (E = N, P, As, Sb), select the correct statement from the following:

A. The stability of hydrides decreases down the group.

B. The basicity of hydrides decreases down the group.

C. The reducing character increases down the group.

D. The boiling point increases down the group.

Choose the correct answer from the options given below:

[JEE Main 2026, 28 Jan (Shift 1)]

A group 15 element forms \(d\pi -d\pi\) bond with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group members that form \(d\pi -d\pi\) bond. The atomic number of the element is _______

[JEE Main 2025, 28 Jan (Shift 2)]

Choose the correct statements about the hydrides of group 15 elements.
A. The stability of the hydrides decreases in the order \(NH _3> PH _3> AsH _3>\) \(SbH _3> BiH _3\).
B. The reducing ability of the hydride increases in the order \(NH _3< PH _3< AsH _3\) \(< SbH _3< BiH _3\).
C. Among the hydrides, \(NH _3\) is strong reducing agent while \(BiH _3\) is mild reducing agent.
D. The basicity of the hydrides increases in the order \(NH _3< PH _3< AsH _3<\) \(SbH _3< BiH _3\).

Choose the most appropriate from the options given below:

[JEE Main 2024, 30 Jan (Shift 2)]

Anomalous behaviour of oxygen is due to its

Superacidity of \({\mathrm{HSO}}_{3}\mathrm{F}+{\mathrm{SbF}}_{5}\) is due to:

Memory Based Question 29/Jan/25 Evening shift

Given below are two statements:

Statement I: C < O < N < F is the correct order in terms of first ionization enthalpy values.

Statement II: S > Se > Te > Po > O is the correct order in terms of the magnitude of electron gain enthalpy values.

In the light of the above statements, choose the correct answer from the options given bleow:

[JEE Main 2026, 22 Jan (Shift 2)]

Choose the correct statements from the following

(A) All group 16 elements form oxides of general formula EO₂ and EO₃ where E = S, Se, Te and Po. Both the types of oxides are acidic in nature.

(B) TeO₂ is an oxidising agent while SO₂ is reducing in nature.

(C) The reducing property decreases from H₂S to H₂ Te down the group.

(D) The ozone molecule contains five lone pairs of electrons. Choose the correct answer from the options given below:

Choose the correct statements from the following

(A) All group 16 elements form oxides of general formula EO₂ and EO₃ where E = S, Se, Te and Po. Both the types of oxides are acidic in nature.

(B) TeO₂ is an oxidising agent while SO₂ is reducing in nature.

(C) The reducing property decreases from H₂S to H₂ Te down the group.

(D) The ozone molecule contains five lone pairs of electrons. Choose the correct answer from the options given below:

The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of

[JEE Main 2025, 24 Jan (Shift 1)]

The maximum covalency of a non-metallic group 15 element ' E ' with weakest E-E bond is

[JEE Main 2025, 22 Jan (Shift 2)]

Assertion (A): Both rhombic and monoclinic sulphur exist as \({\mathrm{S}}_{8}\) while oxygen exists as \({\mathrm{O}}_{2}\).
Reason (R): Oxygen forms \(p\pi -p\pi\) multiple bonds with itself and other elements having small size and high electronegativity like \(\mathrm{C},\mathrm{N}\), which is not possible for sulphur.

In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2024, 09 Apr (Shift 1)]

Assertion (A): Both rhombic and monoclinic sulphur exist as \({\mathrm{S}}_{8}\) while oxygen exists as \({\mathrm{O}}_{2}\).
Reason (R): Oxygen forms \(p\pi -p\pi\) multiple bonds with itself and other elements having small size and high electronegativity like \(\mathrm{C},\mathrm{N}\), which is not possible for sulphur.

In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2024, 09 Apr (Shift 1)]

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (\({\mathrm{HNO}}_{2}\)) gives the species

[JEE Advanced 2024, Paper-1]

Identify the correct statements about p-block elements and their compounds.
(A) Non metals have higher electronegativity than metals.
(B) Non metals have lower ionisation enthalpy than metals.
(C) Compounds formed between highly reactive nonmetals and highly reactive metals are generally ionic.
(D) The non-metal oxides are generally basic in nature.
(E) The metal oxides are generally acidic or neutral in nature.

Choose the correct answer from the options given below :

Anomalous behavior of oxygen is due to its

Identify the incorrect statements about group 15 elements :
(A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(B) The common oxidation states of these elements are \(-3,+3\) and +5 .
(C) Nitrogen has unique ability to form \(p \pi- p \pi\) multiple bonds.
(D) The stability of +5 oxidation states increases down the group.
(E) Nitrogen shows a maximum covalency of 6.

Choose the correct answer from the options given below :

Incorrect Statement among the following is (JEE mains memory based shift-1 23/01/2025)

First ionisation enthalpy values of first four group 15 elements are given below. Choose the correct value for the element that is a main component of apatite family :

[JEE Main 2025, 29 Jan (Shift 2)]

The property/properties that show irregularity in first four elements of group-17 is/are :
(A) Covalent radius
(B) Electron affinity
(C) Ionic radius
(D) First ionization energy
Choose the correct answer from the options given below:

[JEE Main 2025, 2 Apr (Shift 1)]

Identify the incorrect statements about group 15 elements :
(A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperature.
(B) The common oxidation states of these elements are \(-3,+3\) and +5 .
(C) Nitrogen has unique ability to form \(p \pi- p \pi\) multiple bonds.
(D) The stability of +5 oxidation states increases down the group.
(E) Nitrogen shows a maximum covalency of 6.

Choose the correct answer from the options given below :

[JEE Main 2024, 8 Apr (Shift 2)]

Which element in group-15 has lowest ionisation energy?

Memory Based Question 29/Jan/25 Evening shift

\(\text{ The oxidation states of ' }P\text{ ' in }{H}_{4}{P}_{2}{O}_{7},{H}_{4}{P}_{2}{O}_{5}\text{ and }{H}_{4}{P}_{2}{O}_{6}\text{, respectively are: }\)

[JEE Main 2021, 27 Jul (Shift 1)]

The bond dissociation energy is highest for

\(Cl{F}_{5}\) at room temperature is

[JEE Main 2023, 13 Apr (Shift 1)]

Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and \(P _4 O _{10}\) (in 4:1 ratio ) is

[JEE Main 2021, 20 Jul (Shift 1)]

Which one of the following correctly represents the order of stability of oxides, \(X _2 O ;( X =\) halogen \()\) ?

[JEE Main 2021, 31 Aug (Shift 2)]

Which one of the following group - 15 hydride is the strongest reducing agent?

[JEE Main 2021, 22 Jul (Shift 2)]

Choose the most appropriate answer from the options given below:

[JEE Main 2021, 18 Mar (Shift 1)]

"A" obtained by Ostwald's method involving air oxidation of \(\mathrm{NH _3}\), upon further air oxidation produces "B". "B" on hydration forms an oxoacid of Nitrogen along with evolution of "A". The oxoacid also produces "A" and gives positive brown ring test

[JEE Main 2023, 29 Jan (Shift 1)]

The correct order of bond dissociation enthalpy of halogens is

[JEE Main 2021, 25 Feb (Shift 2)]

In the following reactions, the total number of oxygen atoms in \(X\) and \(Y\) is

\(\begin{aligned} & Na _2 O + H _2 O \rightarrow 2 X \\ & Cl _2 O _7+ H _2 O \rightarrow 2 Y \end{aligned}\)

[JEE Main 2023, 10 Apr (Shift 1)]

The oxidation states of nitrogen in \(NO , NO _2, N _2 O\) and \(NO _3^{-}\)are in the order of:

[JEE Main 2021, 18 Mar (Shift 2)]

The oxide without nitrogen-nitrogen bond is:

[JEE Main 2021, 1 Sep (Shift 2)]

Number of \(Cl = O\) bonds in chlorous acid, chloric acid and perchloric acid respectively are:

[JEE Main 2021, 27 Jul (Shift 2)]

The set that represents the pair of neutral oxides of nitrogen is:

[JEE Main 2021, 17 Mar (Shift 2)]

Number of \(Cl = O\) bonds in chlorous acid, chloric acid and perchloric acid respectively are:

If the boiling point of \( \mathrm{H}_{2} \mathrm{O} \) is \( 373 \mathrm{~K} \), the boiling point of \( \mathrm{H}_{2} \mathrm{S} \) will be

Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K ?

[JEE Main 2021, 27 Aug (Shift 2)]

In the following reactions, products (A) and (B), respectively, are\( \mathrm{~NaOH}+\mathrm{Cl}_{2} \rightarrow(\mathrm{A})+ \) side products (hot and conc.)\( \mathrm{~Ca}(\mathrm{OH})_{2}+\mathrm{Cl}_{2} \rightarrow(\mathrm{B})+ \) side products(dry)

[JEE Main 2020, 7 Jan (Shift 2)]

Reaction of thionyl chloride with white phosphorus forms a compound \([ A ]\), which on hydrolysis gives \([ B ]\), a dibasic acid. [A] and [B] are respectively

[JEE Main 2023, 25 Jan (Shift 1)]

Among the following allotropic forms of sulphur, the number of allotropic forms, which will show paramagnetism is
(A) \(\alpha\) - sulphur
(B) \(\beta\) - sulphur
(C) \(S _2\) - form

[JEE Main 2021, 24 Feb (Shift 2)]

Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given in List-II and choose the correct option:

The order of electron gain enthalpy in \(kJ / mol\) of fluorine, chlorine, bromine and iodine, respectively are

[JEE Main 2020, 7 Jan (Shift 1)]

Given below are two statements:
Statement-I: \(SbCl _5\) is more covalent than \(SbCl _3\)
Statement-II: The higher oxides of halogens also tend to be more stable than the lower ones.
In the light of the above statements, choose the most appropriate answer from the options given below

[JEE Main 2023, 12 Apr (Shift 1)]

Given below are two statements:
Statement I: \(\ \alpha \) and \(\ \beta \) forms of sulphur can change reversibly between themselves with slow heating or slow cooling.
Statement II: At room temperature the stable crystalline form of sulphur is monoclinic sulphur. In the light of the above statements, choose the correct answer from the options given below

[JEE Main 2021, 25 Feb (Shift 2)]

$$\begin{array}{|c|c|c|c|}\hline & \begin{array}{c}\text { List-I } \\\text { (Process) }\end{array}$$ & & $$\begin{array}{c}\text { List-II } \\\text { (Catalyst) }\end{array}$$
\hline \text { (A) } & \text { Deacon's process } & \text { (I) } & \text { ZSM-5 }
\hline \text { (B) } & \text { Contact process } & \text { (II) } & \mathrm{CuCl}_2
\hline \text { (C) } & $$\begin{array}{l}\text { Cracking of } \\\text { hydrocarbons }\end{array}$$ & \text { (III) } & \text { Particles 'Ni' }
\hline \text { (D) } & $$\begin{array}{l}\text { Hydrogenation of } \\\text { vegetable oils }\end{array}$$ & \text { (IV) } & \mathrm{V}_2 \mathrm{O}_5
\hline
\end{array}

Choose the most appropriate answer from the options given below:

[JEE Main 2021, 18 Mar (Shift 1)]

Phosphine is not obtained by which of the following reactions?

The oxidation states of nitrogen in \( \mathrm{NO}, \mathrm{NO}_{2}, \mathrm{~N}_{2} \mathrm{O} \) and \( \mathrm{NO}_{3}{ }^{-} \)are in the order of

[JEE Main 2021, 18 Mar (Shift 2)]

Which one of the following correctly represents the order of stability of oxides, \(X _2 O ;( X =\) halogen \()\) ?

$$\begin{aligned}&\text { Match List - I with List - II }\\&\begin{array}{lc}\text { List - I } & \text { List - II } \\\text { (Name of oxo acid) } & \text { (Oxidation state of "P") } \\\text { (A) Hypophosphorous acid } & \text { (I) }+5 \\\text { (B) Orthophosphoric acid } & \text { (II) }+4 \\\text { (C) Hypophosphoric acid } & \text { (III) }+3 \\\text { (D) Orthophosphorous acid } & \text { (IV) }+2 \\& \text { (V) }+1\end{array}\end{aligned}$$

[JEE Main 2021, 16 Mar (Shift 1)]

Given below are two statement: one is labelled as Assertion \( A \) and the other is labelled as Reason \( \mathrm{R} \).

Assertion \( \mathrm{A}: \mathrm{SO}_{2} \) (g) is absorbed to a large extent than \( \mathrm{H}_{2}(\mathrm{~g}) \) on activated charcoal.

Reason R : \( \mathrm{SO}_{2}(\mathrm{~g}) \) has a higher critical temperature than \( \mathrm{H}_{2}(\mathrm{~g}) \)

In the light of the above statements, choose the most appropriate answer from the options given below.

The correct group of halide ions which can be oxidised by oxygen in acidic medium is:

[JEE Main 2023, 13 Apr (Shift 2)]

Match List-I with List-II:

Choose the correct answer from the options given below:

[JEE Main 2021, 16 Mar (Shift 1)]

The compound that cannot act both as oxidising and reducing agent is:

[JEE Main 2020, 9 Jan (Shift 1)]

Given below are two statements:
Statement-I: Chlorine can easily combine with oxygen to form oxides: and the product has a tendency to explode.
Statement-II: Chemical reactivity of an element can be determined by its reaction with oxygen and halogens.

In the light of the above statements, choose the correct answer from the options given below.

[JEE Main 2023, 1 Feb (Shift 1)]

Which one of the following is used to remove most of plutonium from spent nuclear fuel?

[JEE Main 2021, 27 Aug (Shift 2)]

The number of non-ionisable hydrogen atoms present in the final product obtained from the hydrolysis of \( \mathrm{PCl}_{5} \) is:

[JEE Main 2021, 26 Aug (Shift 2)]

Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and \({P}_{4}{O}_{10}\) (in 4:1 ratio) is:

[JEE Main 2021, 20 Jul (Shift 1)]

In which of the following arrangements the given sequence is not strictly according to the property indicated against it:

A xenon compound 'A' upon partial hydrolysis gives \(XeO _2 F _2\). The number of lone pair of electrons present in compound \(A\) is ____ (Round off to the nearest integer)

[JEE Main 2021, 18 Mar (Shift 2)]

\(XeF _4\) reacts with \(SbF _5\) to form \(\left[ XeF _m\right]^{ n +}\left[ SbF _y\right]^{ z -}\)
\[m + n + y + z =\]

[JEE Main 2023, 8 Apr (Shift 1)]

If the boiling point of \( \mathrm{H}_{2} \mathrm{O} \) is \( 373 \mathrm{~K} \), the boiling point of \( \mathrm{H}_{2} \mathrm{S} \) will be

[JEE Main 2020, 3 Sep (Shift 1)]

The bond dissociation energy is highest for

[JEE Main 2023, 29 Jan (Shift 1)]

One mole of \(P _4\) reacts with 8 moles of \(SOCl _2\) to give 4 moles of A, x mole of \(SO _2\) and 2 moles of B. A, B and x respectively are

[JEE Main 2023, 11 Apr (Shift 2)]

The difference in the oxidation state of Xe between the oxidised product of \(Xe\) formed on complete hydrolysis of \(XeF _4\) and \(XeF _4\) is _____

[JEE Main 2023, 10 Apr (Shift 2)]

Bond dissociation energy of \(E - H\) bond of the " \(H _2 E\) " hydrides of group 16 elements (given below), follows order

(A) \(O\) (B) \(S\)
(C) \(Se\) (D) \(Te\)

[JEE Main 2023, 30 Jan (Shift 2)]