Zinc metal is added to dilute hydrochloric acid. The gas evolved is :
(a) Oxygen
(b) Hydrogen
(c) Chlorine
(d) Carbon dioxide

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Solution

Hydrogen.

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Similar questions

(a) Name the gas evolved when dilute hydrochloric acid is added to:
(i) Zinc metal
(ii) Calcium carbonate
(iii) Sodium sulphite
(iv) Lead (II) sulphide
(v) Magnesium bicarbonate
(vi) Potassium bisulphite
(b) Give a balanced equation for each of the above reaction.

Q. When zinc metal is heated with caustic soda solution, the gas evolved is :
(1) hydrogen
(2) carbon dioxide
(3) oxygen
(4) hydrogen choride

Q. When zinc reacts with dilute hydrochloric acid, the gas evolved is:

Question 33
Write a balanced chemical equation for each of the following reactions and also classify them.

(a) Lead acetate solution is treated with dilute hydrochloric acid to form lead chloride and acetic acid solution.

(b) A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.

(d) Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water.

Q. Name the gas evolved when dilute hydrochloric acid is added to: [2 MARKS]
a) Calcium carbonate
b) Sodium sulphite

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Zinc metal is added to dilute hydrochloric acid. The gas evolved is : (a) Oxygen (b) Hydrogen (c) Chlorine (d) Carbon dioxide

Hydrogen.

Zinc metal is added to dilute hydrochloric acid. The gas evolved is :
(a) Oxygen
(b) Hydrogen
(c) Chlorine
(d) Carbon dioxide