Explain, why bonding angle (HOH) in water is `104^@.31'` instead of `109^@.28'`?

The bond angle in water molecule is

The bond angle in HhatOH of water molecule is

Explain the shape and the bond angle in BeCl_2 in terms of VBT

Explain why pure water has the maximum water potential.

Assertion (A): The bond angle in HOH ( H_2O ) decreases from 109^@ 28' to 104^@ 31' . Reason (R) : H_2O has lone pair - lone pair repulsion and lone pair - bond pair repulsion.

In which of the following species the inter atomic bond angle is 109^@ .28?

Explain why The angle of contact of mercury with glass is obtuse. While that of water with glass is acute .

Explain the shape and bond angle in BCl_(3) molecule in terms of Valence Bond Theory.