Chemistry Part 2 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 - Enzymes are defined as …

A - Protein

B - Lipid

C - Carbohydrate

D - Calcium

Answer : A

Explanation

Enzymes normally accelerate or catalyze the chemical reactions.

Answer : D

Explanation

Nucleus consists protons and neutrons.

Q 3 - Consider the following statements:

1. Carbon dioxide is prepared in the laboratory by treating marble pieces with dilute hydrochloric acid.

2. Carbon dioxide is colorless, odorless, and incombustible gas.

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

Chemical formula of Carbon dioxide is CO2.

Q 4 - Which among the following is used for removing dampness in the room or container?

A - Sodium chloride

B - Potassium dichromate

C - Sodium bisulphate

D - Sodium bisulphate

Answer : D

Explanation

Calcium chloride can collect enough water from the air. The chemical formula of Calcium chloride is CaCl2.

Answer : A

Explanation

N/A

Q 6 - Plaster of Paris contains …

A - Magnesium

B - Calcium

C - Phosphorous

D - Arsenic

Answer : B

Explanation

N/A

Q 7 - The substance that removes the excess acid and raise the pH value to appropriate level in stomach is known as …

A - Antacid

B - Epsom salt

C - Sulphadrug

D - Chloroform

Answer : A

Explanation

N/A

Q 8 - Which among the following is used in bottles?

A - Polypropene

B - Polyvinyl chloride

C - Nylon

D - Teflon

Answer : A

Explanation

It is also used in crates.

Q 9 - Arsenic (As) is an element of …

A - s block

B - p block

C - d block

D - d block

Answer : B

Explanation

Atomic number of Arsenic is 33.

Q 10 - Barium (Ba) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : A

Explanation

Atomic number of Barium is 56.

Answer : D

Explanation

N/A

Q 12 - Which among the following is used in insecticides?

A - Bleaching powder

B - Zinc

C - Calcium sulphate

D - Calcium carbonate

Answer : A

Explanation

Chemical formula of bleaching powder [Ca(OCI)CI].

Q 13 - Which among the following is used in removing the hardness of water?

A - Nichrome

B - Chromium

C - Zeolite

D - Copper

Answer : C

Explanation

N/A

Q 14 - Consider the following statements:

1. H2SO4 and HNO3 are used to wash iron for its galvanization.

2. Oxalic acid is used to remove rust spot.

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

N/A

Q 15 - Which among the following is used in match industry?

A - Carbon dioxide

B - Nitrous oxide

C - Water gas

D - Phosphorous

Answer : D

Explanation

Phosphorous is also used as refrigerant.

Q 16 - Consider the following statements:

1. The relative charge on electron is -1 unit.

2. An electron was obtained from Cathode rays experiment..

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

N/A

Q 17 - Chemical formula of Philosopher’s wool is …

A - ZnO

B - Zn2O

C - ZnO2

D - ZnO3

Answer : A

Explanation

Philosopher’s wool or zinc oxide consists of zinc and oxygen.

Q 18 - Consider the following statements:

1. A thinner is a solvent, examples are turpentine oil and kerosene.

2. Thinner is applied to paint to decrease its thickness and make it more fluid.

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

N/A

Q 19 - Iron rust is formed because of the reaction of iron and oxygen in the presence of …….

A - Carbon dioxide

B - Carbon monoxide

C - Moisture

D - Nitrogen oxide

Answer : C

Explanation

In presence of moisture or water, rust (on iron) forms.

Answer : A

Explanation

N/A

chemistry_part2_online_quiz.htm
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