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Q.

Oxide of carbon (X) is prepared by dehydration of formic acid using concentrated H2SO4 at 373 K. (X) can not reduce 

(A)Al2O3

(B)Na2O

(C)ZnO

(D)Fe2O3

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a

C and D

b

A and B

c

A and C

d

B and D

answer is B.

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Detailed Solution

detailed_solution_thumbnail

HCOOH→373KConc.H2SO4CO + H2O

X = CO can't reduce alkali, alkaline earth metal oxides,aluminium oxide and some transition metal oxide

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