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Q.

The bond energies (in KJ mole^–1) of P-H, As-H and N-H respectively ?

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a

318, 247 and 389

b

247, 318 and 389

c

247, 389 and 318

d

318, 389 and 247

answer is D.

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Detailed Solution

Electro negativity is directly proportional to Bond energy

Bond energy of N-H >bond energy of P-H>bond energy of As-H

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