Selected MCQ

Current Question
Which ion is negative?
  • A. Cation
  • B. Anion
  • C. Proton
  • D. Positron
Correct Answer: B
Explanation:
Anions gain electrons.
Related Question 1
A system with negative heat capacity is characteristic of:
  • A. Ideal gas
  • B. Black holes and self-gravitating systems
  • C. Solids
  • D. Liquids
Correct Answer: B
Explanation:
Adding energy can decrease temperature in gravitational systems.
Related Question 2
Which ion has negative charge?
  • A. Cation
  • B. Anion
  • C. Proton
  • D. Neutron
Correct Answer: B
Explanation:
Anions gain electrons.