Question

1st one how will you test a gas which is liberated when

Answer 1

Option a is correct

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Answer 2

Explanation:

ANS . 1.a.

THE GAS LIBERATED WILL BE HYDROGEN.

TEST TO IDENTIFY THE GAS

1. BRING A MATCHSTICK NEAR THE GAS .

• YOU WILL SEE THE GAS WILL BURN WITH A POP SOUND

2. PASS THE GAS THROUGH SOAP SOLUTION YOU WILL SE

E BUBBLES IN THE SOLUTION.

# the above reaction:

HCl + Zn ( active metal )

-> ZnCl2 + H2 ( hydrogen)

####b.

In this case, CO2 gas will release.

If you pass CO2 gas through lime water the solution will turn milky.