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B
Ni
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C
Cu/ZnO
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D
Cu/Cr2O3
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Solution
The correct option is BCu CO(g)+H2(g)[X]→HCHO(g) Here, X is copper (Cu), which acts as a good reductant and gives formaldehyde in this reaction. The reaction intact, occurs in the following manner CO(g)+H2(g)→CH3OHCu→HCHO