Question

#Though Hydrogen is lighter than air, it is not collected by downward displacement of air,why?​

Answer 1

Answer:

HEY MATE HERE IS UR ANSWER

Even though hydrogen is lighter than air it is not collected by downward displacement of air because of these reasons:

Hydrogen  gets oxidised when it is exposed to oxygen which makes it burn with a pale blue flame and the residue is water. This means that it mixes with oxygen.

Downward displacement of air requires a gas that does not mix with air and is lighter than air. Hydrogen is lighter than air but mixes with air.

HOPE THIS HELPS YOU