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Byju's Answer

Standard XII

Chemistry

Binary Compounds - Hydrides

When a substa...

Question

When a substance A reacts with water, it produces a combustible gas B and a solution of substance C in water. D reacts with this solution of C and produces the same gas B on warming. D can also produce gas B on reaction with dilute $H_{2} S O_{4}$ . A imparts a deep golden yellow colour to smokeless flame. A, B, C and D respectively are:

N a, H_{2}, N a O H, Z n

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K, H_{2}, K O H, A l

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C a, H_{2}, C a (O H)_{2}, S n

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C a C_{2}, C_{2} H_{2}, C a (O H)_{2}, F e

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Solution

The correct option is A $N a, H_{2}, N a O H, Z n$
$2 N a A + 2 H_{2} O \to 2 N a O H C + H_{2} B N a O H C + Z n D \to N a_{2} Z n O_{2} + H_{2} B$

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Similar questions

Q. When a substance

A

reacts with water, it produces a combustible gas

B

and a solution of substance

C

in water.

D

reacts with this solution

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and produces the same gas

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on warming.

D

can also produce gas

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on reaction with dilute

H_{2} S O_{4}

A

imparts a deep golden yellow colour to smokeless flame.

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and

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When a substance

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B

and a solution of substance

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in water.

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reacts with this solution of

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and produces the same gas

B

on warming.

D

can also produce gas

B

on reaction with dilute

H_{2} S O_{4}

A

imparts a deep golden yellow colour to a smokeless flame.

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The correct option is A Na, H2, NaOH, Zn2 NaA+2H2O→2NaOHC+H2BNaOHC+ZnD→Na2ZnO2+H2B

The correct option is A $N a, H_{2}, N a O H, Z n$
$2 N a A + 2 H_{2} O \to 2 N a O H C + H_{2} B N a O H C + Z n D \to N a_{2} Z n O_{2} + H_{2} B$