Question

A student took two tubes containing 2 mL of dilute hydrochloric acid and added zinc granules to test tube (A) and solid sodium carbonate to test tube (B) as shown below:

The correct observation would be

(1) Rapid reaction in both the test tubes

(2) Slow reaction in (A) and rapid reaction in (B)

(3) Rapid reaction in (A) but a slow reaction in (B)

(4) No reaction in any of the test tubes

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Answer 1

Answer:

(2) Slow reaction in (A) and rapid reaction in (B)