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: What kind of bond is present in NaCl?
A) Metallic
B) Hydrogen
C) Ionic
D) Covalent
✅ Correct Answer: C
Explanation: NaCl has an ionic bond formed by electron transfer.
Q: Electrolysis is used in which process?
A) Fractional distillation
B) Chromatography
C) Evaporation
D) Refining metals
✅ Correct Answer: D
Explanation: Electrolysis purifies metals like copper.
Q: Which gas is produced in respiration?
A) Oxygen
B) Methane
C) Carbon dioxide
D) Hydrogen
✅ Correct Answer: C
Explanation: CO₂ is the main byproduct of cellular respiration.
Q: The color of copper sulfate solution is?
A) Green
B) Red
C) Yellow
D) Blue
✅ Correct Answer: D
Explanation: CuSO₄ forms a characteristic blue solution in water.
Q: Which element is essential in making proteins?
A) Sulfur
B) Nitrogen
C) Iron
D) Phosphorus
✅ Correct Answer: B
Explanation: Nitrogen is a key component of amino acids.