Question

4. When lead acetate solution is added to potassium
iodide solution, a precipitate is formed which
(a) Red
(b) Yellow
(c) White
(d) Black
5. This gas has a rotten egg smell
(a) Ammonia
(b) Hydrogen
(c) Hydrogen sulphide
(d) Oxygen
6. When sodium carbonate reacts with dilute
hydrochloric acid, the gas evolved is
(a) Carbon-dioxide
(b) Nitrogen
(c) Oxygen
(d) Hydrogen​

Answer 1

Answer:

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