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Allotropes of Phosphorus

Ag 2 S is sol...

Question

${A g}_{2} S$ is soluble in $N a C N$ due to the formation of :

A

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

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B

A g ({C N)}_{2}

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C

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

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D

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

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Solution

The correct option is A $N a [{A g (C N)}_{2}]$
${A g}_{2} S$ is soluble in $N a C N$ due to the formation of $N a [{A g (C N)}_{2}]$ .

The reaction is as follows:

${A g}_{2} S + 4 N a C N \to 2 N a [{A g (C N)}_{2}] + N a_{2} S$

So, the correct option is $A$

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Similar questions

Following reaction is reversible

$A g_{2} S + 4 N a C N ⇌ 2 N a [A g (C N)_{2}] + N a_{2} S$

When we pass air this reaction become spontaneous.

A g_{2} S

N a C N

due to formation of :

Q. The chemical reactions involved in the extraction of metallic silver from argentite is -

2 N a [A g (C N)_{2}] + Z n \to N a_{2} [Z n (C N)_{4}] + 2 A g ↓

If the statement is true enter 1 else 0.

Q. Silver is obtained from

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

by reaction with:

H_{2} S

is bubbled into a 0.2 M NaCN solution which is, 0.02 M each in

A g (C N)_{2}^{⊝}

(C d (C N)_{4})^{2 -}

K_{s p}

A g_{2} S

C d S

10^{- 50}

7.1 \times 10^{- 28}

and K instability for

[A g (C N)_{2}^{⊝}]

[C d (C N)_{4}^{2 -}]

1.0 \times 10^{- 20}

7.8 \times 10^{- 18}

, which sulphide will precipitate first?

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Allotropes of Phosphorus

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