Question

When zinc metal is treated with a dilute solution of a strong acid, a gas is
evolved, which is utilized in the hydrogenation of oil. Name the gas evolved
Write the chemical equation of the reaction involved and also write a test to
detect the gas formed.​

Answer 1

Zinc metal : Zn

dilute strong acid .. let it be H2SO4

Zn + H2SO4 -------> ZnSO4 + H2

Evolved gas is hydrogen, we can confirm it by placing a burning matchstick at the opening of the funnel or tube... It will burn with a pop sound.

Answer 2

Answer:

Zn + HCl - ZnCl2 + H2

The gas evolved is hydrogen.

We can test hydrogen gas by bringing a burning candle near it, the gas burns with a pop sound.

This proves that the gas is hydrogen gas.

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