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  • Which of the following is false regarding laboratory preparation of hydrogen Option: 1 dil. <img alt="H_2SO_4" src="/latex-image/?H_2SO_4"

Which of the following is false regarding laboratory preparation of hydrogen 

Option: 1

dil. H_2SO_4  reacts with granular zinc 


Option: 2

Woulfe bottle or Kipp's apparatus can be used for the process 


Option: 3

Downward displacement of air occurs in the apparatus 


Option: 4

None of these


Answers (1)

best_answer

In the laboratory preparation of Hydrogen, dilute H_2SO_4 reacts with Zinc granules.

The reaction is given as 

Zn+H_2SO_4 \longrightarrow ZnSO_4 + H_2

The reaction may be carried out in a Kipp's Apparatus or Woulfe's bottle which the lighter gases rise up by downward displacement of air.

Hence, all given statements are correct.

So, none of these is false

Therefore, option(4) is correct.

Posted by

Sanket Gandhi

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