Selected MCQ

Current Question
Which layer has highest temperature?
  • A. Troposphere
  • B. Stratosphere
  • C. Thermosphere
  • D. Mesosphere
Correct Answer: C
Explanation:
Thermosphere has very high temperatures.
Related Question 1
Which atmospheric layer has lowest temperature?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: C
Explanation:
Mesosphere is coldest.
Related Question 2
Which layer contains clouds?
  • A. Troposphere
  • B. Stratosphere
  • C. Mesosphere
  • D. Thermosphere
Correct Answer: A
Explanation:
Weather and clouds occur in troposphere.
Related Question 3
Which species has highest electronegativity?
  • A. Oxygen
  • B. Fluorine
  • C. Chlorine
  • D. Nitrogen
Correct Answer: B
Explanation:
Fluorine is most electronegative.
Related Question 4
Which layer contains ionosphere?
  • A. Troposphere
  • B. Stratosphere
  • C. Thermosphere
  • D. Mesosphere
Correct Answer: C
Explanation:
Ionosphere lies within thermosphere.
Related Question 5
Which species has highest oxidation state?
  • A. MnO₂
  • B. Mn₂O₇
  • C. MnO
  • D. Mn₃O₄
Correct Answer: B
Explanation:
Mn in Mn₂O₇ is +7.