Question

Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The H — O — H bond angle in water molecule is ${104.5}^{\circ }$.
Reason R: The lone pair-lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.
In the light of the above statements, choose the correct answer from the options given below.
(JEE (MAIN)-2021)

Answer 1

The H — O — H bond angle in water molecule is ${104.5}^{\circ }$ as shown above in the structure.
Repulsion between lone pair-lone pair electrons is higher than bond pair-bond pair electrons because bond pair electrons are stuck between two nuclei. So, option (c) is correct.