Q. Statement 1:Oxidation number of carbon in is zero.
Statement 2: formaldehyde, is a covalent compound.

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Solution:

Both statements are true but statement 2 is not the correct explanation of statement 1. Oxidation number can be calculated using some rules. H is assigned +1 oxidation state and O has oxidation number-2
O. No. of C in
O. no. of
O. No. of