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Which of the following noble gases is us...

Which of the following noble gases is used in miner's cap lamp ?

A

Helium

B

Neon

C

Argon

D

Krypton

Text Solution

Verified by Experts

The correct Answer is:
D
VA group hydrides decreases from `NH_(3)` to `BiH_(3)`
`NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3) gt BiH_(3)`
(IV) Bond angle of VA group hydrides decreases from `NH_(3)` to `BiH_(3)`.
`NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3) gt BiH_(3)`.
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