Chemistry Part 1 Online Quiz


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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 - Which among the following is largely used in cooking gas?

A - Liquefied methane

B - Liquefied butane

C - Liquefied hydrogen

D - Liquefied ethane

Answer : B

Explanation

Cooking gas is actually liquefied butane and isobutene.

Q 2 - The chemical formula of Quick lime is …

A - CaO

B - Ca2O

C - CaO2

D - CaO4

Answer : A

Explanation

Quick lime consists of calcium and Oxygen.

Q 3 - Chemical formula of Bleaching powder is …

A - CaCl(OCl)4.H2O

B - CaCl(OCl)6.H2O

C - CaCl(OCl)4.H4O

D - Ca2Cl(OCl)4.H2O

Answer : A

Explanation

Bleaching powder consists of calcium, chlorine, and oxygen.

Q 4 - If the atomic number of carbon is 6 and atomic weight is 12, then what would be the number of proton?

A - 12

B - 6

C - 18

D - 3

Answer : B

Explanation

N/A

Answer : D

Explanation

The chemical reaction that occurs after coming in contact with sulfur or hydrogen makes silver black.

Q 6 - Consider the following statements:

1. Painkillers are known as analgesics.

2. Oftoxaim is an example of analgesic drug.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : A

Explanation

Otoxaim destroys microorganism. Examples of Analgesics are aspirin, paracetamol, and morphine.

Q 7 - Methanol, sometimes, is also called as …

A - Wood alcohol

B - Rubber alcohol

C - Adhesive alcohol

D - Energy alcohol

Answer : A

Explanation

The chemical formula of methanol is CH3OH.

Q 8 - Which among the following is used in making red glass?

A - Selenium

B - Chromium III oxide

C - Chromium III oxide

D - Chromium III oxide

Answer : A

Explanation

Copper I oxide is also used in making red glass.

Answer : A

Explanation

N/A

Answer : D

Explanation

N/A

Q 11 - Which among the following is known as ‘Chinese white?’

A - Zinc oxide

B - Zinc phosphide

C - Zinc phosphate

D - Sodium sulphate

Answer : A

Explanation

Zinc oxide is also used in white paint.

Q 12 - Which among the following is used in a rocket engine?

A - Hydrogen peroxide

B - Heavy water

C - Liquid hydrogen

D - Highly refined petrol

Answer : C

Explanation

N/A

Q 13 - In Cement industry, which among the following is used?

A - Calcium carbonate

B - Calcium sulphate

C - Common salt

D - Bleaching powder

Answer : B

Explanation

The chemical formula of calcium sulphate is CaSO4 2H2O.

Q 14 - The pH value of lemon juice is about …

A - 4

B - 2

C - 6

D - 8

Answer : B

Explanation

N/A

Q 15 - Which among the following is used in Calomel?

A - Mercury

B - Mercuric oxide

C - Mercuric chloride

D - Aluminium sulphate

Answer : C

Explanation

The chemical formula of mercuric chloride is HgCl2.

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 - Which one of the following is used in pencil?

A - Graphite

B - Black ash

C - Zinc

D - Charcoal

Answer : A

Explanation

Normally, pencil cores are manufactured of graphite mixed with a clay binder that leaves grey or black marks, which can be easily erased.

Q 18 - Gadolinium (Gd) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : D

Explanation

Atomic number of Gadolinium is 64.

Q 19 - The process by which metals are refined is known as …

A - Quenching

B - Distillation

C - Cupellation

D - Levitation

Answer : C

Explanation

Metals are heated on very high temperature to purify the impurities.

Q 20 - Chemical formula of Banking soda is …

A - NaHCO3

B - NaH2CO3

C - Na2HCO3

D - Na2HCO5

Answer : A

Explanation

Banking soda consists of sodium, hydrogen, carbon, and oxygen.


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