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: Which oxide is acidic in nature?
A) CaO
B) CO₂
C) MgO
D) Na₂O
Q: The molecular formula of glucose is:
A) C₆H₁₂O₆
B) CH₃COOH
C) C₂H₆O
D) C₆H₆
Q: Catalysts are substances that:
A) Change products
B) Stop reactions
C) Slow down reactions
D) Speed up reactions
Q: Hardness of water is due to:
A) Ca²⁺ and Mg²⁺
B) SO₄²⁻
C) NaCl
D) Iron
Q: To test for hydrogen, one should:
A) Use litmus
B) Use limewater
C) Apply a glowing splint
D) Use a burning splint