The hybridisations of the atomic orbitals of nitrogen in NO$$_2^ - $$, NO$$_2^ + $$ and NH$$_4^ + $$ respectively are.

Amongst the following, the linear species is :

A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is :

Given below are two statements : one is labeled 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 :