Question

when zinc metal is added to a dilute solution of a mineral acid, a gas is evolved which is utilised in the hydrogenation of oils. mention the gas evolved. write the chemical equation of the reaction involved. How will you detect the identify of the gas?​

Answer 1

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hydrogenation of oil

When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil.☺️❤️

Answer 2

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Explanation:

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Zinc metal gives hydrogen gas when it is treated with dilute sulphuric acid. Hydrogen gas is utilized in hydrogenation of oil.

Zn+2HCl→ZnCl2+H2

Therefore, the gas evolved is hydrogen.

Test for hydrogen gas: When a burning candle is brought near the hydrogen gas, it burns with pop sound which confirms the presence of hydrogen gas.