Match List - I with List - II : List - I (Metal ion) List - II (Group in Qualitative analysis) (a) Mn 2 + (i) Group - III (b) As 3 + (ii) Group - IIA (c) Cu 2 + (iii) Group - IV (d) Al 3 + (iv) Group - IIB Choose the most appropriate answer from the options given below :

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

(a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)

(a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

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Brown ppt. (A) dissolve in HNO₃ gives (B) which gives white ppt. (C) with NH₄OH. (C) on reaction with HCl gives solution (D) which gives white turbidity on addition of water. What is (D) ?

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Important Questions on Theoretical Principles of Experimental Chemistry

EASY

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Which one of the following compounds is not a yellow colored compound ?

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Copper sulphate solution reacts with

KCN

to give

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

{PbO}_{2}

is obtained from

EASY

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Match List - I with List - II :

	List - I (Metal ion)		List - II (Group in Qualitative analysis)
(a)	${Mn}^{2 +}$	(i)	Group - III
(b)	${As}^{3 +}$	(ii)	Group - IIA
(c)	${Cu}^{2 +}$	(iii)	Group - IV
(d)	${Al}^{3 +}$	(iv)	Group - IIB

Choose the most appropriate answer from the options given below :

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

A solution containing a group

- IV

cation gives a precipitate on passing

H_{2} S .

A solution of this precipitate in dil.

HCl

produces a white precipitate with

NaOH

solution and bluish-white precipitate with basic potassium ferrocyanide. The cation is

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is:

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

When

H_{2} S

gas is passed into a mixture of

{Mn}^{2 +}, {Ni}^{2 +}, {Cu}^{2 +}

and

{Hg}^{2 +}

ion in an acidified aqueous solution, the precipitates formed are

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

{Fe}^{3 +}

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

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

When

H_{2} S

gas is passed through a hot acidic aqueous solution containing

{Al}^{3 +}, {Cu}^{2 +}, {Pb}^{2 +}

and

{Ni}^{2 +},

a precipitate is formed which consists of

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

The pair(s) of ions where BOTH the ions are precipitated upon passing

H_{2} S

gas in presence of dilute

HCl

, is (are)

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

The Nessler's reagent contains

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

The incorrect statement is:

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Question Image

What are $A, B, C, D$ ?

EASY

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

To an aqueous solution containing ions such as

{Al}^{3 +}, {Zn}^{2 +}, {Ca}^{2 +}, {Fe}^{3 +}, {Ni}^{2 +}, {Ba}^{2 +}

and

{Cu}^{2 +}

was added

conc . HCl

, followed by

H_{2} S

. The total number of cations precipitated during this reaction is/are :

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

During the qualitative analysis of salt with cation

y^{2 +}

, addition of a reagent

(X)

to alkaline solution of the salt gives a bright red precipitate. The reagent

(X)

and the cation

(y^{2 +})

present respectively are :

HARD

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

In the following reaction sequence in aqueous solution, the species

X, Y

and

Z

respectively, are

Question Image

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

The reaction of

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

and

NaCl

in water produces a precipitate that dissolves upon the addition of

HCl

of appropriate concentration. The dissolution of the precipitate is due to the formation of

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

For the following Assertion and Reason, the correct option is

Assertion (A) : When $Cu$ (II) and sulphide ions are mixed, they react together extremely quickly to give a solid.

Reason (R) : The equilibrium constant of ${Cu}^{2 +} (aq) + S^{2 -} (aq) ⇌ CuS (s)$ is high because the solubility product is low.

MEDIUM

Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

Upon treatment with ammoniacal

H_{2} S

, the metal ion that precipitates as a sulphide is

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Chemistry>Inorganic Chemistry>Theoretical Principles of Experimental Chemistry>Systematic Analysis of Cationic Radicals

An aqueous solution of a salt X turns blood red on treatment with

S C N^{-}

and blue on treatment with

K_{4} [F e {(C N)}_{6}]

, X also gives a positive chromyl chloride test. The salt X is:

Brown ppt. (A) dissolve in HNO3 gives (B) which gives white ppt. (C) with NH4OH. (C) on reaction with HCl gives solution (D) which gives white turbidity on addition of water. What is (D) ?

Important Questions on Theoretical Principles of Experimental Chemistry

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Brown ppt. (A) dissolve in HNO₃ gives (B) which gives white ppt. (C) with NH₄OH. (C) on reaction with HCl gives solution (D) which gives white turbidity on addition of water. What is (D) ?