Home/ Questions/Q 179112
Next
In Process
Amit nagpal
  • 3
Poll
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?

  • 3

Poll Results

22.22%[A] H₂ is first test tube, O₂ in second test tube ( 6 voters )
59.26%[B] CO₂ is first test tube, H₂ in second test tube ( 16 voters )
11.11%[C] O₂ is first test tube, Cl₂ in second test tube ( 3 voters )
7.41%[D] Cl₂ is first test tube, CO₂ in second test tube ( 2 voters )
Based On 27 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

class 10 science mcq solutionsclass 10th science cbsc sample paper
Share

    1 Answer

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

      • 1
    Leave an answer

    Leave an answer

    Browse