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MHT CET202525 Apr 2025Evening ShiftChemistryGeneral Organic ChemistryActual

Which from following compounds does NOT contain nitrogen in it?

Options

  1. AThiophene
  2. BPyridine
  3. CPyrrole
  4. DPiperidine

Correct answer

A. Thiophene

Step-by-step solution

Thiophene has the formula C₄H₄S and contains sulfur but no nitrogen. All other options contain nitrogen: pyridine ( C₅H₅N ), pyrrole ( C₄H₅N ), and piperidine ( C₅H₁₁N ) are nitrogenous heterocycles. The compound that does not contain nitrogen is thiophene.

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