1.

{:("List-I","List-II"),("(reaction)","(Slope of the graph in Ellingham diagram)"),("1) "C_(s)+O_(2(g))rarrCO_(2(g)),"a) Positive slope"),("2) "C_((s))+O_(2(g))rarr2CO_((g)),"b) Negative slope"),("3) "2CO_((g))+O_(2(g))rarr2CO_(2(g)),"b) Almost zero"),("4) "2Fe_((s))+O_(2(g))rarr2FeO_((s)),""):}

Answer»

`{:(1,2,3,4),(C,B,a,b):}`
`{:(1,2,3,4),(c,b,a,a):}`
`{:(1,2,3,4),(c,a,b,a):}`
`{:(1,2,3,4),(a,c,b,a):}`

ANSWER :B


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