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JEE Main levelSingle correct optionDifficulty 2 of 3o1033

Taking a protic solvent to be one with hydrogen attached to oxygen or nitrogen, which of the following is a polar protic solvent?

  1. Aformamide,
  2. BN,N-dimethylformamide,
  3. Cacetonitrile,
  4. Ddimethyl sulfoxide,

Answer: A

Formamide has two N-H bonds and can donate hydrogen bonds. DMF has only a formyl C-H, and acetonitrile and DMSO have no H on N or O, so they are aprotic.
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