The P-Block Elements (XII)

\(PEt _3\) and \(AsPh _3\) as ligands can form \(d \pi- d \pi\) bond with transition metals.

Nitrogen has unique ability to form \(p \pi- p \pi\) multiple bonds with nitrogen, carbon and oxygen.

Nitrogen cannot form \(d \pi- p \pi\) bond as other heavier elements of its group.

\(\mathrm{Po}\)

\(\mathrm{O}\)

\(\mathrm{Se}\)

\(\mathrm{Te}\)

Statement I is false but Statement II is true.

Both Statement I and Statement II are true.

Both Statement I and Statement II are false.

Statement I is true but Statement II is false.

The acidic strength of \(HX ( X = F , Cl , Br\) and I) follows the order : \(HF > HCl > HBr >\) \(HI\).

Fluorine exhibits -1 oxidation state whereas other halogens exhibit \(+1,+3,+5\) and +7 oxidation states also.

The enthalpy of dissociation of \(F _2\) is smaller than that of \(Cl _2\).

Fluorine is stronger oxidising agent than chlorine.

\(PO\)

\(\mathrm{O}\)

\(\mathrm{Se}\)

\(\mathrm{Te}\)

The acidic strength of \(HX ( X = F , Cl , Br\) and I) follows the order : \(HF > HCl > HBr >\) \(HI\).

Fluorine exhibits -1 oxidation state whereas other halogens exhibit \(+1,+3,+5\) and +7 oxidation states also.

The enthalpy of dissociation of \(F _2\) is smaller than that of \(Cl _2\).

Fluorine is stronger oxidising agent than chlorine.

N

P

As

Sb

\(F _2\) is a stronger oxidizing agent than \(Cl _2\) in aqueous solution

On hydrolysis, \(ClF\) forms \(HOCl\) and \(HF\).

\(Cl _2\) is more reactive than \(ClF\).

\(F _2\) is more reactive than \(ClF\).

\({\mathrm{NH}}_{4}{\mathrm{NO}}_{2}\)

\({\mathrm{NH}}_{4}{\mathrm{NO}}_{3}\)

\({\mathrm{AgNO}}_{3}\)

\(\mathrm{Pb}{({\mathrm{NO}}_{3})}_{2}\)

Both statement I and statement II are false

Statement I is correct but statement II is false

Statement I is incorrect but Statement II is true

Both statement I and statement II are true

Both statement I and statement II are false

Statement I is correct but statement II is false

Statement I is incorrect but Statement II is true

Both statement I and statement II are true

Statement I is false but Statement II is true.

Both Statement I and Statement II are true.

Both Statement I and Statement II are false.

Statement I is true but Statement II is false.

\(\left[\mathrm{Fe}(\mathrm{NO})_2\left(\mathrm{SO}_4\right)_2\right]^{2-}\)

\(\left[\mathrm{Fe}(\mathrm{NO})_2\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{3+}\)

\(\left[\mathrm{Fe}(\mathrm{(NO)}_4) \left(\mathrm{SO}_4\right)_2\right]\)

\(\left[\mathrm{Fe}(\mathrm{NO})\left(\mathrm{H}_2 \mathrm{O}\right)_5\right]^{2+}\)

\({\mathrm{HClO}}_{4}\)

\({\mathrm{HClO}}_{3}\)

\(\mathrm{HClO}\)

\({\mathrm{HClO}}_{2}\)

\( \mathrm{HF}<\mathrm{HCl}<\mathrm{HBr}<\mathrm{HI} \); increasing acidic strength

\( \mathrm{H}_{2} \mathrm{O}<\mathrm{H}_{2} \mathrm{~S}<\mathrm{H}_{2} \mathrm{Se}<\mathrm{H}_{2} \mathrm{Te} \); increasing \( p K_{a} \) values

\( \mathrm{NH}_{3}<\mathrm{PH}_{3}<\mathrm{AsH}_{3}<\mathrm{SbH}_{3} \); increasing acidic character

\( \mathrm{CO}_{2}<\mathrm{SiO}_{2}<\mathrm{SnO}_{2}<\mathrm{PbO}_{2} \); increasing oxidizing power

\(Li _3 N ( s )+3 H _2 O ( l ) \rightarrow NH _3( s )+3 LiOH ( aq )\)

\(2 F _2( g )+2 H _2 O ( l ) \rightarrow 4 HF ( aq )+ O _2( g )\)

\(P _4 O _{10}( s )+6 H _2 O ( l ) \rightarrow 4 H _3 PO _4( aq )\)

\(SiCl _4( l )+2 H _2 O ( l ) \rightarrow SiO _2( s )+4 HCl ( aq )\)

Noble gases have very high melting and boiling points

Noble gases have weak dispersion forces

Noble gases have large positive values of electron gain enthalpy

Noble gases are sparingly soluble in water