PMDC Verified Question 46 of 83
The first organic compound manufacture from inorganic compound was:
A
Ethyl acetate
B
Urea
C
Acetic acid
D
Methane
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Urea
Concept:

The "Vital Force Theory" posited that organic compounds could only be produced by living organisms. Friedrich Wöhler disproved this in 1828.

Solution:

  • Wöhler accidentally synthesized urea (an organic compound found in urine) while attempting to prepare ammonium cyanate (an inorganic salt) by heating it.


  • \( \text{NH}_4\text{CNO} \xrightarrow{\Delta} \text{CO}(\text{NH}_2)_2 \)


  • This was the first laboratory synthesis of an organic compound from inorganic precursors.


Why other options are incorrect:

Acetic acid was synthesized later by Kolbe. Methane was synthesized by Berthelot.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.