JEE MAIN - Chemistry (2022 - 24th June Morning Shift - No. 8)
Two statements are given below :
Statement I : The melting point of monocarboxylic acid with even number of carbon atoms is higher than that of with odd number of carbon atoms acid immediately below and above it in the series.
Statement II : The solubility of monocarboxylic acids in water decreases with increase in molar mass.
Choose the most appropriate option :
Both Statement I and Statement II are correct.
Both Statement I and Statement II are incorrect.
Statement I is correct but Statement II is incorrect.
Statement I is incorrect but Statement II is correct.
Explanation
Statement (I) is correct as monocarboxylic acids
with even number of carbon atoms show better
packing efficiency in the solid state, statement (II) is
also correct as the solubility of carboxylic acids
decreases with an increase in molar mass due to
increase in the hydrophobic portion with an increase in
the number of carbon atoms.
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