Chemistry Part 1 Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Chemistry. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - pH value of orange juice is normally

A - 5

B - 7

C - 3

D - 8

Answer : C

Explanation

N/A

Answer : B

Explanation

N/A

Q 3 - Which among the following is the lightest gas?

A - Hydrogen

B - Oxygen

C - Carbon dioxide

D - Argon

Answer : A

Explanation

Hydrogen is colorless and highly flammable gas.

Q 4 - The process that involves removal of electrons is known as

A - Dissociation

B - Oxidation

C - Polymerization

D - Reduction

Answer : B

Explanation

The process increases the oxidation number.

Q 5 - The chemical formula of washing soda is

A - Na2CO3.10H2O

B - Na4CO3.10H2O

C - Na2CO3.12H2O

D - Na2CO3.10H4O

Answer : A

Explanation

The washing soda consists of sodium, carbon, hydrogen, and oxygen.

Q 6 - remains in a liquid state at room temperature.

A - Mercury

B - Chromium

C - Lead

D - Zinc

Answer : A

Explanation

N/A

Q 7 - is used in dry cleaning of garments.

A - Tetrachloroethylene

B - Lemon

C - Only detergent

D - Diesel

Answer : A

Explanation

Dry cleaning is a technique of cleaning cloth and other textiles with the help of chemical solvent; no water is used.

Q 8 - Which among the following is used in bullet proof glass?

A - Lexan

B - Melamine

C - Styrene butadiene

D - Bakelite

Answer : A

Explanation

N/A

Q 9 - Consider the following statements:

1. chlorofluorocarbon is used as refrigerant.

2. Chlorine is used as bleaching agent.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

Chlorofluorocarbon is also known as Freon.

Q 10 - Who among the following has invented Dynamite

A - Alfred Nobel

B - Niels Bohr

C - Richard Feyman

D - Enrico Fermi

Answer : A

Explanation

Dynamite is an explosive, which is made up of nitroglycerin, sorbents, and stabilizers.

Q 11 - Which among the following is used in making artificial parts of the body?

A - Lead arsenic

B - Carbon lead

C - Lithium lead

D - Barium lead

Answer : B

Explanation

N/A

Q 12 - Titanium (Ti) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : C

Explanation

Atomic number of Titanium is 22.

Q 13 - Nickel (Ni) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : C

Explanation

Atomic number of Nickel is 28.

Answer : A

Explanation

Pure water does not have free electrons to move freely and conduct electric charge.

Q 15 - Consider the following statements:

1. An acid has sweet test

2. An acid contains replaceable hydroge.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : B

Explanation

An acid has sour test.

Q 16 - Which among the following is not an ore of Aluminum (Al)?

A - Corundum

B - Felspar

C - Cryolite

D - Carnalite

Answer : D

Explanation

Carnalite is an ore of Potassium.

Q 17 - Samarium (Sm) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : D

Explanation

Atomic number of Samarium is 62.

Q 18 - Terbium (Tb) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : D

Explanation

Atomic number of Terbium is 65.

Q 19 - The deep redness in fires flame is because of

A - Strontium

B - Beryllium

C - Lithium

D - Boron

Answer : A

Explanation

N/A

Q 20 - Chemical formula of Quartz is

A - Na2SiO3

B - Na2SiO4

C - Na3SiO3

D - Na5SiO3

Answer : A

Explanation

Quartz consist of sodium, silica, and oxygen.

chemistry_part1_online_quiz.htm
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