H_2 acts as an oxidant in its reaction with:

JEE Main Chemistry question

H acts as an oxidant in its reaction with:

(A)Br
(B)CaCorrect
(C)N
(D)S

Answer: (B)

Solution

Hydrogen acts as an oxidant (i.e. is itself reduced, gaining electrons to form H) only when reacting with a more electropositive element. With calcium, a highly electropositive metal, hydrogen is reduced to the hydride ion: $Ca +

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Question ID VK-137324