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Metals

A solution re...

Question

A solution reacts with zinc granules to give a gas which burns with a 'pop' sound. The solution contains:
(a) Mg(OH)₂
(b) Na₂CO₃
(c) NaCl
(d) HCl

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Solution

(d) HCl

Zinc granules react with HCl to give hydrogen gas, which burns with a ‘pop’ sound.

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