Chemistry, asked by vanshikasinghi4122, 1 year ago

Staye two characteristics of chemical reaction wch takes place when dilute sulphuric acid is pure over zinc

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Answered by Rajdeep11111
1
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Two characteristics of the Chemical reaction when Dilute Sulphuric Acid is Poured over Pure Zinc:


Type of Reaction: Displacement Reaction.

Chemical Equation: Zn + H₂SO₄ -----> ZnSO₄ + H₂

Products: Zinc Sulphate Solution and Hydrogen gas.

Test for the gas evolved:
1. The gas evolved burns with a pale blue flame in air.

2. The gas evolved burns with a pop sound when a matchstick is brought near it.

3. The gas evolved forms tiny droplets of water when exposed to air.
(2H₂ + O₂ ----> 2H₂O)


Property of Sulphuric acid in the reaction:
Acidic Property is shown (because all acids, in their dilute form {except HNO₃}, reacts with pure and active metals to liberate hydrogen gas).



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