In which of the following arrangements, the sequence is not strictly according to the property written against it?

Question

In which of the following arrangements, the sequence is not strictly according to the property written against it?, CO 2 2 2 2 : increasing oxidising power, HF < HCl < HBr < HI : increasing acid strength, B < C < O < N : increasing first ionisation energy, NH 3 3 3 3 : increasing basic strength

MARKS App · Accepted Answer

Drago's Rule :- In case of NH 3 , PH 3 , - - - bond angle decrease ,NH 3 ( ≈ 107 ° ) & PH 3 ( ≈ 90 ° ) So, %s character of lp in NH 3 is less & %s charactor of lp top to bottom increase so basic charactor decrease.

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