Question

Arrange the following in the order of property indicated for each set: (i) F2, Cl2, Br2, I2 - increasing bond dissociation enthalpy. (ii) HF, HCl, HBr, HI - increasing acid strength. (iii) NH3, PH3, AsH3, SbH3, BiH3 − increasing base strength.

Answer 1

Hey Dear,

(i) Increasing bond dissociation enthalpy F2, Cl2, Br2, I2 -

Given molecules in increasing order of bond dissociation enthalpies will be -

I2 < F2 < Br2 < Cl2

(ii) Increasing acid strength HF, HCl, HBr, HI -

Given compounds in increasing order of acidic strength are -

HF < HCl < HBr < HI

(iii) Increasing base strength NH3, PH3, AsH3, SbH3, BiH3 -

Given compounds in increasing order of basic strength are -

BiH3 < SbH3 < AsH3 < PH3 < NH3

Thanks dear...