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Question

Observe the given figure carefully and identify the substances marked as (p), (q) and (r).
810821_db1c4f0ca0c0479cb48953dc38a1e5ae.jpg
  1. (p)- Zinc, (q)- Water, (r)- Carbon dioxide
  2. (p)- Magnesium, (q)- Hydrochloric acid, (r)- Oxygen
  3. (p)- Magnesium, (q)- Water, (r)- Carbon dioxide
  4. (p)- Zinc, (q)- Hydrochloric acid, (r)- Hydrogen

A
(p)- Magnesium, (q)- Hydrochloric acid, (r)- Oxygen
B
(p)- Magnesium, (q)- Water, (r)- Carbon dioxide
C
(p)- Zinc, (q)- Hydrochloric acid, (r)- Hydrogen
D
(p)- Zinc, (q)- Water, (r)- Carbon dioxide
Solution
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Zn+2HClZnCl2+H2
ZInc Hydrochloric acid ZInc chloride Hydrogen

Hydrogen gas burns with a pop sound when burning splinter is brought near it.

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