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Amit nagpal
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Asked: 2021-12-15T06:45:21+00:00 In:

Which gas is evolved, when hydrochloric acid is added in first test tube containing small pieces of marble and then in second test tube containing zinc granules?

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Poll Results

16.67%[A] H₂ is first test tube, O₂ in second test tube ( 4 voters )
62.5%[B] CO₂ is first test tube, H₂ in second test tube ( 15 voters )
12.5%[C] O₂ is first test tube, Cl₂ in second test tube ( 3 voters )
8.33%[D] Cl₂ is first test tube, CO₂ in second test tube ( 2 voters )
Based On 24 Votes

Participate in Poll, Choose Your Answer.

In first test tube, the following reactions involves:
CaCO₃ + 2HCl → CO₂ + H₂O + CaCl₂
CO₂ Gas is evolved here.
In second test tube the following reaction takes place:
Zn + 2HCl → ZnCl₂ + H₂

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    1 Answer

    1. [B] CO₂ is first test tube, H₂ in second test tube

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