Home
Class 11
CHEMISTRY
Although geometries of NH3 and H2O molec...

Although geometries of `NH_3` and `H_2O` molecules are distorted tetrahedral, bond angle in water is less than that of ammonia. Discuss.

Text Solution

Verified by Experts

In `overset(* *)NH_(3)and "in" H_(2)overset(* *)(O":")` molecules the central atom is surrounded by four electron pairs. The geometries of these molecules are expected to be tetrahedral. They however, get distorted on account of the presence f lone electron pairs. On comparisionk, the bond angle in `NH_(3)(107^(@))` is more than in `H_(2)O(104^(@)).` This is on occount of greater magnitude off form of lone pair : lone repulsion in `H_(2)O` molecule as compared to lone pair : shared pair repulsion in `NH_(3)` molecule. For more details, consult section 4.14.
Promotional Banner

Similar Questions

Explore conceptually related problems

Although geometries of NH_(3) and H_(2)O molecules are distorted tetrahedral, bond angle in water is less than that of ammonia. Discuss.

The bond angle in OF_(2) is less than that in H_(2)O - why ?

Why is the bond angle in H_(2)S less than that in H_(2)O ?

Bond angle in H_(2)O is greater than that of H_(2)S - explain.

Bond angle in NH_(3) is more than in PH_(3). Explain.

Why are the bond angles of NH_3 and H_2O less than the normal values of regular tetrahedron bond angles in spite of being sp^3 hybridised?

Which of the following molecule have a bond angle smaller than tetrahedral angle-

The bond angle of NF_(3) (102.3^(@)) is less than that of NH_(3) (107.2^(@)) because-

State reason:- Bond angle of PF_3 is greater than NH_3

(i) Why are the bond angles of NH_(3) and H_(2)O less than the normal values of the regular tetrahedron bond angles inspite of being sp^(3) hybridised? (ii) Find out the bond order of H_(2)^(+) ion.