Match the List-I with List-II : Cations Group reaction P → Pb 2 + , Cu 2 + H 2 S gas in presence of dilute HCl Q → Al 3 + , Fe 3 + NH 4 2 CO 3 in presence of NH 4 OH R → Co 2 + , Ni 2 + NH 4 OH in presence of NH 4 CI S → Ba 2 + , Ca 2 + H 2 S in presence of NH 4 OH

P → i , Q → iii , R → iv , S → ii

P → i , Q → iii , R → ii , S → iv

P → iv , Q → ii , R → iii , S → i

P → iii , Q → i , R → iv , S → ii

Match the List-I with List-II : Cations Group reaction P → Pb 2 + , Cu 2 + H 2 S gas in presence of dilute HCl Q → Al 3 + , Fe 3 + NH 4 2 CO 3 in presence of NH 4 OH R → Co 2 + , Ni 2 + NH 4 OH in presence of NH 4 CI S → Ba 2 + , Ca 2 + H 2 S in presence of NH 4 OH

P → i , Q → iii , R → iv , S → ii

P → i , Q → iii , R → ii , S → iv

P → iv , Q → ii , R → iii , S → i

P → iii , Q → i , R → iv , S → ii

MEDIUM

JEE Main

IMPORTANT

Earn 100

Match List I with List II.

List-I
(Anion) List-II
(gas evolved on reaction with dil. $H_{2} {SO}_{4}$ )

(A) ${CO}_{3}^{2 -}$ (I)
Colourless gas which turns lead acetate paper black.

(B) $S^{2 -}$ (II)
Colourless gas which turns acidified potassium dichromate solution green.

(C) ${SO}_{3}^{2 -}$ (III) Brown fumes which turns acidified KI solution containing starch blue.

(D) ${NO}_{2}^{-}$ (IV) Colourless gas evolved with brisk effervescence, which turns lime water milky.

Choose the correct answer from the options given below

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Important Questions on Qualitative Analysis

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 29 June 2022 Shift 2>Q 17

A white precipitate was formed when

{BaCl}_{2}

was added to water extract of an inorganic salt. Further, a gas

' X'

with characteristic odour was released when the formed white precipitate was dissolved in dilute HCI. The anion present in the inorganic salt is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 27 July 2022 Shift 2>Q 18

{Fe}^{3 +}

cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 24 January 2023 Shift 1>Q 19

An ammoniacal metal salt solution gives a brilliant red precipitate on addition of dimethylglyoxime. The metal ion is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 25 January 2023 Shift 1>Q 20

Match the List-I with List-II :

Cations	Group reaction
$P \to {Pb}^{2 +}, {Cu}^{2 +}$	$H_{2} S$ gas in presence of dilute $HCl$
$Q \to {Al}^{3 +}, {Fe}^{3 +}$	${({NH}_{4})}_{2} {CO}_{3}$ in presence of ${NH}_{4} OH$
$R \to {Co}^{2 +}, {Ni}^{2 +}$	${NH}_{4} OH$ in presence of ${NH}_{4} CI$
$S \to {Ba}^{2 +}, {Ca}^{2 +}$	$H_{2} S$ in presence of ${NH}_{4} OH$

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 25 January 2023 Shift 2>Q 21

A chloride salt solution acidified with dil.

{HNO}_{3}

gives a curdy white precipitate,

[A]

, on addition of

{AgNO}_{3}

. [A] on treatment with

{NH}_{4} OH

gives a clear solution, B.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 29 January 2023 Shift 2>Q 22

A solution of

{CrO}_{5}

in amyl alcohol has a....colour

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 30 January 2023 Shift 1>Q 23

In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group IV in qualitative inorganic analysis?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 21 - Qualitative Analysis>JEE Main - 30 January 2023 Shift 2>Q 24

Formulae for Nessler's reagent is:

	List-I (Anion)		List-II (gas evolved on reaction with dil. $H_{2} {SO}_{4}$ )
(A)	${CO}_{3}^{2 -}$	(I)	Colourless gas which turns lead acetate paper black.
(B)	$S^{2 -}$	(II)	Colourless gas which turns acidified potassium dichromate solution green.
(C)	${SO}_{3}^{2 -}$	(III)	Brown fumes which turns acidified KI solution containing starch blue.
(D)	${NO}_{2}^{-}$	(IV)	Colourless gas evolved with brisk effervescence, which turns lime water milky.

Important Questions on Qualitative Analysis

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