A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :

Among the following, the aromatic compounds are :


Choose the correct answer from the following options :

Match List - I with List - II :

	List - I Name of oxo acid		List - II Oxidation state of 'P'
(a)	Hypophosphorous acid	(i)	+5
(b)	Orthophosphoric acid	(ii)	+4
(c)	Hypophosphoric acid	(iii)	+3
(d)	Orthophosphorous acid	(iv)	+2
		(v)	+1

Choose the correct answer from the options given below :

Which of the following reactions DOES NOT involve Hoffmann bromamide degradation?