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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Hydrogen bonding does not play a central role in the following phenomena
  • A
    Ice floats in water
  • B
    Higher lewis basicity of primary amines than tertiary amines in aqueous solutions
  • ✓
    Formic acid is more acidic than acetic acid
  • D
    Dimerisation of acetic acid in benzene
✓

Answer

Correct option: C.
Formic acid is more acidic than acetic acid
(C) Formic acid is more acidic because it has lesser number of alkyl groups attached and hence, lesser the $+ I$ effect of alkyl groups.

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