Chemistry MCQs
Chemistry MCQs cover organic, inorganic, physical, analytical, and biochemistry topics. Perfect for FSc, BSc, CSS, PMS, NTS, and competitive exams, they enhance concept mastery, analytical skills, speed, and accuracy for academic and job test success.
Q: Covalent bonds are common in:
A) Gases
B) Metals
C) Non-metals
D) All compounds
✅ Correct Answer: C
Explanation: Non-metals bond covalently due to similar electronegativities.
Q: The element used in nuclear fission is:
A) Carbon
B) Helium
C) Hydrogen
D) Uranium
✅ Correct Answer: D
Explanation: Uranium-235 undergoes controlled fission in nuclear reactors.
Q: The simplest hydrocarbon is:
A) Methane
B) Butane
C) Ethane
D) Propane
✅ Correct Answer: A
Explanation: Methane (CH₄) is the most basic alkane.
Q: Alkaline solutions have pH:
A) Neutral
B) Equal to 7
C) Above 7
D) Below 7
✅ Correct Answer: C
Explanation: Bases have pH values above 7.
Q: Copper reacts with nitric acid to form:
A) Methane
B) Oxygen
C) Hydrogen
D) Nitrogen dioxide
✅ Correct Answer: D
Explanation: Brown fumes of NO₂ appear when copper dissolves in nitric acid.