Question

Arrange the following in increasing order of property indicated giving reason : i) Hydrides of group 15 - boiling point ii) Hydrides of group 17- acidic strength iii) Hydride of group 16 - reducing character.​

Answer 1

Your answers:

1. BiH₃ < SbH₃ < AsH₃ < NH₃ (because NH₃ has hydrogen bonding and has more boiling point)

2. HF < HCl < HBr < HI (This is because, an acid must release H⁺ easily and H-I has greater bond length, and breaks easily giving H⁺ in a faster rate)

3. H₂O< H₂S < H₂Se < H₂Te (this happens due to the metallic bond between H and Te, making it a good reducing agent)

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