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: The main ore of aluminum is?
A) Magnetite
B) Galena
C) Bauxite
D) Hematite
Q: Which element forms the basis of life?
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
Q: The number of valence electrons in oxygen is?
A) 6
B) 2
C) 4
D) 8
Q: An example of a polyatomic ion is?
A) Na⁺
B) OH⁻
C) Cl⁻
D) K⁺
Q: Which compound has a triple bond?
A) Ethene
B) Ethyne
C) Propane
D) Ethane