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Laboratory Preparation

When zinc pow...

Question

When zinc powder is added to acetic acid ___________.

A

the mixture becomes warm

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B

a gas is evolved

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C

the colour of the mixture becomes yellow

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D

a solid settles at the bottom

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Solution

The correct option is B a gas is evolved
The reaction is: $Z n + C H_{3} C O O H \to Z n (C H_{3} C O O)_{2} + H_{2}$

Hydrogen gas is evolved. Zn being an active metal it readily reacts at room temperature.

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