Isotope(s) of hydrogen which emits low energy $$\beta$$^$$-$$ particles with t_1/2 value > 12 years is/are

Match List-I with List-II :

	List-I (Species)		List-II (Hybrid Orbitals)
(a)	$$S{F_4}$$	(i)	$$s{p^3}{d^2}$$
(b)	$$I{F_5}$$	(ii)	$${d^2}s{p^3}$$
(c)	$$NO_2^ + $$	(iii)	$$s{p^3}d$$
(d)	$$NH_4^ + $$	(iv)	$$s{p^3}$$
		(v)	$$sp$$

Choose the correct answer from the options given below :

Which of the following molecules does not show stereo isomerism?

Which one of the following group-15 hydride is the strongest reducing agent?