1.

I. ZnO+CtoZn+COuparrow II. PbO+CtoPb+COuparrow III. Cr_(2)O_(3)+2AIto AI_(2)O_(3)+2Cr IV. P_(4)O_(10)+2Crto2CrO_(5)+P_(4)uparrow V. AI_(2)O_(3) + 2CrtoCr_(2)O_(3)+2AIOut of the above non-feasible reaction (s) is (are):

Answer»

IV and V
) II, III and IV
I and IV
None EXCEPT V

Answer :A


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