Chemistry MCQs
Our Chemistry MCQs section is tailored for students and job seekers aiming for excellence in academic and competitive exams. It includes a vast selection of multiple-choice questions covering organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry, and biochemistry. These MCQs are suitable for FSc, BSc, pre-medical, and pre-engineering students, as well as CSS, PMS, NTS, and other competitive exams in Pakistan. Designed by subject experts, the questions help reinforce key concepts, test analytical skills, and improve speed and accuracy. Each topic includes beginner to advanced-level questions with a focus on the latest syllabus and past papers. If you are preparing for university entry tests or government job recruitment exams, this resource offers an excellent opportunity to master chemistry topics effectively.
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
Q: Which of these is a noble gas?
A) Nitrogen
B) Chlorine
C) Oxygen
D) Neon
Q: Rusting of iron is an example of which process?
A) Neutralization
B) Sublimation
C) Oxidation
D) Reduction
Q: The pH value of lemon juice is approximately?
A) 9
B) 5
C) 7
D) 2
Q: Element with atomic number 6 is?
A) Helium
B) Nitrogen
C) Oxygen
D) Carbon
Q: Covalent bonds are formed by?
A) Sharing of electrons
B) Loss of neutrons
C) Gaining protons
D) Transfer of electrons