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Q.

Which of the following will be required to identify the gas evolved when dilute hydrochloric acid reacts with zinc metal ?

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a

A burning splinter

b

Lime water

c

pH paper

d

Red litmus paper

answer is C.

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Detailed Solution

When zinc metal react with dilute hydrochloric acid produces hydrogen gas.

Zn+2HCl→ZnCl2+H2↑

By using burning splinter we can identified H2 gas. 

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