Question

The difference in the formula and molecular masses of CH3OH and C2H5OH is a)CH4 and 18u
b)CH2 and 14u
c) CH3 and 16u
d)CH3 and 16u

Answer 1

it's A that is your answer

Answer 2

Obviously here, the difference in the formula and molecular masses of Methanol and Ethanol is CH2 and 14 units( 12+1+1 units of one carbon and two hydrogen) since, they both belong to the same homologous series of alcohols.

Any two consecutive members of a homologous series differ in formula by -CH2 and 14 units.

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