Q.

HCHO with conc. alkali forms two compounds. The change in oxidation number would be

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a

(0 to –2) in both the compounds

b

(0 to +2) in both the compounds

c

all the above are correct

d

(0 to + 2) in one compound and (0 to -2) in the second compound

answer is C.

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Detailed Solution

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HC0HOconc.alkalie HC+2OONa+C-2H3OH

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HCHO with conc. alkali forms two compounds. The change in oxidation number would be