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Radhika
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Asked: 2021-12-01T04:15:02+00:00 In:

Dilute hydrochloric acid is added to granulated zinc taken in a test tube. The following observation are recorded. Point out the correct observation:

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Poll Results

0%[A] The surface of metal becomes Shiny
0%[B] The reaction mixture turns milky
33.33%[C] Odour of a pungent smelling gas is recorded ( 1 voter )
66.67%[D] A colourless and odourless gas is evolved ( 2 voters )
Based On 3 Votes

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The chemical reaction between dilute hydrochloric acid and granulated zinc is represented as:
Zn + 2HCl → ZnCl₂ + H₂ ↑
The product zinc chloride, does not turn the reaction milky. Hydrogen gas evolved is colourless and odourless and released by the formation of bubbles.

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    1 Answer

    1. [D] A colourless and odourless gas is evolved

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