MCQsDrive | MCQsDrive

Chemistry 1488 MCQs [All-Courses]

oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

Which of the following solutions of H2SO4 is more concentrated ?

A 1 Molar solution

B 1 molal solution

C 1 normal solution

D all have same concentration

Review Detailed Answer

Correct Answer: 1 Molar solution

The phenomenon in which a compound exists in two or more crystalline forms is called ________________?

A Isomorphism

B Polymorphism

C Anisotropy

D Allotropy

Review Detailed Answer

Correct Answer: Polymorphism

Ozone hole is substantial depletion of ozone in every year during__________________?

A Aug – Nov

B Sep – Nov

C Nov – Dec

D Dec – Jan

Review Detailed Answer

Correct Answer: Sep – Nov

Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?

A More strength of H-bonding

B More strength of London forces

C Less polarizability

D All of the above

Review Detailed Answer

Correct Answer: More strength of London forces

Which of the following is used as water disinfectant to avoid the formation of toxic compounds_________________?

A Cl2

B O3

C ClO2

D both B & C

Review Detailed Answer

Correct Answer: both B & C

Amorphous substances posses_________________?

A No definite geometry

B No definite heat of fusion

C No sharp melting points

D All of the above

Review Detailed Answer

Correct Answer: No sharp melting points

Chlorination of water may be harmful if the water contains_________________?

A Ammonia

B Dissolved oxygen

C Carbon dixide

D All

Review Detailed Answer

Correct Answer: Ammonia

A solid may be made up of_________________?

A Atoms

B Ions

C Molecules

D A, B, and C

Review Detailed Answer

Correct Answer: A, B, and C

A single chlorine free radical can destroy how many ozone molecules ?

A 10

B 100

C 10000

D 100000

Review Detailed Answer

Correct Answer: 10

If we provide very high amount of heat to a liquid its boiling point will__________________?

A increase

B remains constant

C decrease

D there will be no boiling

Review Detailed Answer

Correct Answer: remains constant

Showing 291 to 300 of 1488 results

Contact Info

Chemistry 1488 MCQs [All-Courses]

All Topics 1488

All Topics 1488

Which of the following solutions of H2SO4 is more concentrated ?

The phenomenon in which a compound exists in two or more crystalline forms is called ________________?

Ozone hole is substantial depletion of ozone in every year during__________________?

Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?

Which of the following is used as water disinfectant to avoid the formation of toxic compounds_________________?

Amorphous substances posses_________________?

Chlorination of water may be harmful if the water contains_________________?

A solid may be made up of_________________?

A single chlorine free radical can destroy how many ozone molecules ?

If we provide very high amount of heat to a liquid its boiling point will__________________?