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NEETChemistry

Principles of Qualitative Analysis

5 NEET Chemistry previous year questions on Principles of Qualitative Analysis — options free on every question; 1 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW
PYQ

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.

A. \(A{l}^{3+}\)

B. \(C{u}^{2+}\)

C. \(B{a}^{2+}\)

D. \(C{o}^{2+}\)

E: \(M{g}^{2+}\)

Choose the correct answer from the options given below:

a

E, A, B, C, D

b

B , A , D , C , E

c

B , C , A , D , E

d

E, C, D, B, A

✓ Correct answer: b)

B , A , D , C , E

Explanation

Al3+ → Group III

Cu2+ → Group II

Ba2+ → Group V

Co2+ → Group IV

Mg2+ → Group VI

Q2
PYQ

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI

A. \(A{l}^{3+}\)

B. \(C{u}^{2+}\)

C. \(B{a}^{2+}\)

D. \(C{o}^{2+}\)

E. \(M{g}^{2+}\)

Choose the correct answer from the options given below

[NEET 2024]

a

E, A, B, C, D

b

B , A , D , C , E

c

B , C , A , D , E

d

E, C , D , B , A

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Q3
PYQ

Match List-I with List-II:

List-I

(Metal Ion)

List-II

(Group in Qualitative Analysis)

(A)

Mn2+

(I)

Group - III

(B)

As3-

(II)

Group - IIA

(C)

Cu2-

(III)

Group - IV

(D)

Al3+

(IV)

Group - IIB

Choose the most appropriate answer from the options given below:

a

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

b

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

c

(A)-(I), (B)-(IV), (C)-(II), (D)-(III)

d

(A)-(IV), (B)-(II), (C)-(III), (D)-(I)

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Q4
PYQ

Match List-I with List-II:

List-I

(Test/reagent)

List-II

(Radical identified)

(A)

Lake Test

(I)

\( NO_3^- \)

(B)

Nessler's Reagent

(II)

\( Fe^{3+} \)

(C)

Potassium sulpho cyanide

(III)

\( Al^{3+} \)

(D)

Brown Ring Test

(IV)

\( NH_4^+ \)

Choose the correct answer from the options given below:

a

A-IV, B-II, C-III, D-I

b

A-II, B-IV, C-III, D-I

c

A-II, B-III, C-IV, D-I

d

A-III, B-IV, C-II, D-I

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Q5
PYQ

An inorganic compound ' \(X\) ' on treatment with concentrated \(H _2 SO _4\) produces brown fumes and gives dark brown ring with \(FeSO _4\) in presence of concentrated \(H _2 SO _4\). Also compound ' \(X\) ' gives precipitate ' \(Y\) ', when its solution in dilute \(HCl\) is treated with \(H _2 S\) gas. The precipitate ' \(Y\) ' on treatment with concentrated \(HNO _3\) followed by excess of \(NH _4 OH\) further gives deep blue coloured solution, Compound ' \(X\) ' is:

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

a

\(Cu \left( NO _3\right)_2\)

b

\(Pb \left( NO _3\right)_2\)

c

\(Co \left( NO _3\right)_2\)

d

\(Pb \left( NO _2\right)_2\)

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