Match the following :

	Property of transition element		Reason for the property
A)	Colour of ion	i)	Unpaired electron in (n-1)d orbitals
B)	variable oxidation states	ii)	Same crystal structure and small difference in atomic radii
C)	Foramtion of alloys	iii)	d-d-transitions
D)	Paramagnetism	iv)	High magnitude of positive charge
		v)	Energy difference between ns and (n-1)d sub shells is small

	(A)	(B)	(C)	(D)
1)	iii	v	i	ii
2)	iii	v	ii	i
3)	iii	ii	v	i
4)	ii	i	v	ii