question_answer

Match List-I (Oxidation number) with List II (The element) and select the correct answer using the codes given below the lists : [IAS Prelim]

List-I (Oxidation number)	List-II (The elements)
A. 2 Mn in \[Mn{{O}_{2}}\]	1. Oxidation number of
B. 3 S in \[{{H}_{2}}{{S}_{2}}{{O}_{7}}\]	2. Oxidation number of
C. 4 Ca in CaO	3. Oxidation number of
D. 6 AI in \[NaAI{{H}_{4}}\]	4. Oxidation number of

             

A) A-3;   B-4;   C-1;   D-2     

B) A-4;   B-3;   C-1;   D-2

C) A-3;   B-4;   C-2;   D-1     

D) A-4;   B-3;   C-2;   D-1