Home PYQs UPPSC UPPSC MCQs Prelims 2007 (GS Paper I)

Question

Which of the following is not a molecule atomic particle?

  1. Neutron
  2. Proton
  3. Deuteron
  4. Electron

Answer:

Option C: Deuteron

Detailed Solution:

The correct answer is “Deuteron”.

A deuteron is actually a nucleus of a deuterium atom, which consists of one proton and one neutron. So, it's composed of both protons and neutrons, making it a composite particle, not an elementary one.