Q: 63 (CDS-I/2002)

Match List 1 (Gas) with List II (Main chemical composition) and select the correct answer using the codes given below the Lists
ListI List II
A.  Water gas1. CH4
B.  Producer gas 2. CO + H2
C.  Coal gas3. R, + CH4+CO
D .Gobargas4. CO + N2

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