Name the gas produced when aluminium foil reacts with :

(a) dilute hydrochloric acid.

(b) sodium hydroxide solution.

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Solution

Hydrogen gas is formed in both reactions
(a) When aluminium foil reacts with dilute hydrochloric acid, aluminum chloride and hydrogen gas is formed.
$2 A l (s) + 6 H C l (l) ⟶ 2 A l C l_{3} + 3 H_{2} (g) ↑$
(b) When aluminium foil reacts with sodium hydroxide solution in an aqueous solution of it, then sodium aluminate and hydrogen gas is produced.
$A l (s) + N a O H (a q) + H_{2} O (l) ⟶ N a A l O_{2} (s) + H_{2} (g) ↑$

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Q. Question 9
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is

(a) copper
(b) iron
(c) aluminium
(d) sodium

Q. Question 9
The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is

(a) copper
(b) iron
(c) aluminium
(d) sodium

When dilute hydrochloric acid reacts with sodium hydroxide,

The metal X reacts with dilute hydrochloric acid to form a gas Y.The metal X also reacts with sodium hydroxide solution (on heating) to form the same gas Y.When a lighted matchstick is applied,this gas burns by producing a 'pop' sound.

(a) Name two metals which could behave like X.

(b) Name the gas Y.

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Name the gas produced when aluminium foil reacts with : (a) dilute hydrochloric acid. (b) sodium hydroxide solution.

Name the gas produced when aluminium foil reacts with :

(a) dilute hydrochloric acid.

(b) sodium hydroxide solution.