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Which statement regarding He is incorrec...

Which statement regarding He is incorrect?

A

a.it is used in gas cooled nuclear reactor

B

it is used as a cryogenic agent for carrying out experiment at low temperature

C

b.it is used to produce and sustain powerful superconducting magnets

D

c.it is used to fill gas balloons instead of `H_(2)` because it is lighter and non-combustible

Text Solution

Verified by Experts

The correct Answer is:
d
Option (a),(b)and (c ) are uses of He. Helium is heavier than `H_(2)`
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