Chemistry MCQs

Explore an extensive collection of Chemistry MCQs covering all key topics of Chemistry Mcqs are including organic chemistry, inorganic chemistry, physical chemistry, atomic structure, chemical bonding, stoichiometry, thermodynamics, kinetics, acids and bases, periodic table, and more. Perfect for students preparing for board exams, competitive tests, and university-level assessments in Pakistan

Chemistry MCQs

Which of the following properties prove that cathode rays are material in nature_________________?

A. they cast shadow

B. they possess momentum

C. they are negatively charged

D. all of the above

Paramagnetic behaviour of substance is measured by a balance called___________________?

A. Analytical balance

B. Guoys balance

C. Electrical balance

D. Single beam balance

Metallic crystals are soluble in________________?

A. Polar solvent

B. Non polar solvent

C. Fused metal

D. None

Butyl chloride gives possible isomers ?

A. 2

B. 3

C. 4

D. 5

Which of the following solids show anisotropy___________________?

A. Plastic

B. Glass

C. Rubber

D. None of the above

The rectified spirit is________________?

A. 12% alcohol

B. 90% alcohol

C. 95% alcohol

D. 100% alcohol

As a substance moves from a solid to a liquid all of the following changes occur except ?

A. molecules become more disordered.

B. K.E of the molecules decreases

C. intermolecular forces become weaker.

D. molecules move more frequently.

Oxygen (molecular weight = 32) diffuses at a rate of 10cm3/min under the same conditions of temperature and pressure how fast will hydrogen (molecular weight = 2) diffuse ?

A. 20cm3/min

B. 40cm3/min

C. 160cm3/min

D. 2.5cm3/min

Methyl alcohol is not used as___________________?

A. a solvent

B. an anti freezing agent

C. a substitute for petrol

D. for denaturing of ethyl alcohol

All the following variables are used to describle gases except__________________?

A. pressure

B. volume

C. moles

D. density

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