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Reactions of Aryl Amines (Diazo Salts)

A compound of...

Question

A compound of sodium which when heated gives ${C O}_{2}$ is:

A

{N a}_{2} C O_{3} .10 H_{2} O

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B

N a H {C O}_{3}

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C

{N a}_{2} C O_{3} .7 H_{2} O

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D

{N a}_{2} C O_{3}

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Solution

The correct option is D $N a H {C O}_{3}$
On heating ${N a H C O}_{3}$ decomposes as $\to$

${2 N a H C O}_{3} \to {N a}_{2} {C O}_{3} + {C O}_{2} + H_{2} O$

${N a}_{2} {C O}_{3}$ is very stable and on heating to very high temperature it changes into molten ${N a}_{2} {C O}_{3}$ , but does not decomposes.
Hence, the correct option is B

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