Match list I with list II

	List – I Anion		List – II Gas evolved on reaction with dil $H_{2}S{O}_4$
A)	$C{O}_3^{-2}$	I)	Colour less gas which  turns lead acetate to  black ppt
B)	$S^{-2}$	II)	Colourless gas  which turns acidified  potassium dichromate solution green
C)	$S{O}_{{ }^3}^{-2}$	III)	Brown fumes   which kurns acidified KI solution containing  starch blue
D)	$N{O}_{{ }^2}^{-}$	IV)	Colourless gas evolved with brisk  effervescence,  which turns lime  water milk

Choose the correct answer