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Byju's Answer

Standard XII

Chemistry

Reactivity with Halogens and Hydrogen (Group 2)

Na+ and Ag+...

Question

$N a^{+}$ and $A g +$ differ in :

N a_{2} C O_{3}

is thermally stable while

A g_{2} C O_{3}

decomposes into Ag,

C O_{2}

and

O_{2}

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A g^{+}

forms complexes,

N a^{+}

does not.

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NaCl is water soluble , AgCl is insoluble.

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NaCl and AgCl both give colour in flame when ignited.

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Solution

The correct options are
A $A g^{+}$ forms complexes, $N a^{+}$ does not.
B $N a_{2} C O_{3}$ is thermally stable while $A g_{2} C O_{3}$ decomposes into Ag, $C O_{2}$ and $O_{2}$ .
D NaCl is water soluble , AgCl is insoluble.
$2 A g C O_{3} (s) \to 2 A g (s) + 2 C O_{2} (g) + O (g)$ and $N a_{2} C O_{3}$ is thermally stable.

$A g^{+}$ forms complexes like $A g (C N)_{2}^{-}$ , $N a^{+}$ does not.

NaCl golden yellow flame.
AgCl no flame.

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Similar questions

Q. How can be equilibrium concentration of

A g^{+}

can be reduced in a solution of

N a^{+}, C l^{+}, A g^{+}

and

N O_{3}

, in contact with solid

A g C l

N a^{+} (a q) + C l (a q) + A g^{+} (a q) + N O_{3} (a q) ⇌ A g C l (s) + N a^{+} (a q) + N O_{3} (a q) Δ H = 65.9 k J

Q. ways in which the equilibrium concentration of

A g^{+}

can be reduced in a solution of

N a^{+}

C l^{-}

A g^{+}

and

N O_{3}^{-}

, in contact with solid

A g C l .

N a^{+} (a q) + C l^{-} (a q) + A g^{+} (a q) + N O_{3}^{-} (a q) ⇌ A g C l (s) + N a^{+} (a q) + N O_{3}^{-} (a q) Δ H = - 65.9 k J

Q. Assertion :Solubility of

A g C l

N H_{3} (a q .)

is greater than in pure water. Reason: When

A g C l

dissolve in

N H_{3} (a q .)

, complex ion formation

A g (N H_{3})_{2}^{+}

takes place and solubility equilibria of

A g C l

shifted in forward direction.

Q. A black mineral (A) is soluble in

N a C l

solution forming (B). On adding

Z n

into (B), metal (C) is formed. Metal (C) on boiling with

{H N O}_{3}

forms (D) which gives white ppt (E) with

N a C l

soluble in

{N H}_{3}

solution. (A) can be obtained when (D) reacts with hypo. (A) to (E) are
(A) :

{A g}_{2} S

(B) :

N a [{A g (C N)}_{2}]

A g

(D) :

{A g N O}_{3}

(E) :

A g C l

.
If true enter 1, else enter 0.

AgCl reacts with ammonia to form water soluble

[A g (N H_{3})_{2}] C l

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Na+ and Ag+ differ in :

$N a^{+}$ and $A g +$ differ in :