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(A): Thermal stability of VA group hydri...

(A): Thermal stability of VA group hydrides decreases from `NH_(3)` to `BiH_(3)`
(R): The dissociation energy of M - H bond! increases down the group regularly 

A

Both (A) and (R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are true and (R ) is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

Both (A) and (R ) are false

Text Solution

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The correct Answer is:
3
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