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: Endothermic reactions:
A) Freeze
B) Absorb heat
C) Release heat
D) Explode
Q: Water is considered a universal solvent because it:
A) Dissolves most substances
B) Evaporates quickly
C) Has low density
D) Is neutral
Q: How many electrons can the first energy level hold?
A) 18
B) 8
C) 32
D) 2
Q: The atomic number represents which quantity?
A) Valency
B) Mass number
C) Number of neutrons
D) Number of protons
Q: Sodium reacts with water to form what?
A) Sodium carbonate
B) Sodium chloride
C) Sodium oxide
D) Sodium hydroxide and hydrogen