Question

a. Fill in the blanks:

Hydrogen is prepared in laboratory by the reaction of i)_________ with dilute hydrochloric acid. The hydrogen obtained is not pure. The impure hydrogen is passed through silver nitrate solution to remove ii)_________ and iii)_________. Then the impure hydrogen is passed through lead nitrate solution to remove iv)__________. Then finally hydrogen is passed through potassium hydroxide solution to remove v)_________.

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Answer 1

Answer:

1 dilute sulphuric acid

2 arsine

3 phosphine

4 sulphide gas

5 sulphur dioxide

hey mate , iam not sure about 5th but till 4th hope it helps .......

thanq✌️