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 - …………… fuel has the maximum calorific value.

A - Wood

B - Cow-dung

C - Kerosene

D - Peat

Answer : C

Explanation

N/A

Q 2 - The value of Avogardro’s Number is …………

A - 6.023 × 1023

B - 6.023 × 10-23

C - 6.023 × 1018

D - 6.023 × 10-18

Answer : A

Explanation

N/A

Q 3 - Which among the following is an essential gas for protein synthesis?

A - Oxygen

B - Hydrogen

C - Helium

D - Nitrogen

Answer : D

Explanation

N/A

Q 4 - Which among the following is used to give signal to airplane on the airport?

A - Nyon lamp

B - Hydrogen lamp

C - Helium lamp

D - Mercury lamp

Answer : A

Explanation

N/A

Answer : A

Explanation

Chemical formula of alum is KAl(SO4)2•12H2O.

Q 6 - Plaster of Paris contains …

A - Magnesium

B - Calcium

C - Phosphorous

D - Arsenic

Answer : B

Explanation

N/A

Q 7 - Which one of the following is correctly defines the ‘Oxidation?’

A - It is gain of protons

B - It is loss of electrons

C - It is gain of neutrons

D - It is loss of neutrons and protons

Answer : B

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 - 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 - Consider the following statements:

1. Copper and silver are the best conductors of electricity.

2. Oxides of metals normally are alkaline.

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

Answer : A

Explanation

Apart from the Potassium nitrate, gun powder also contains Sulphur and charcoal.

Q 13 - Which among the following is used in submarine?

A - Sodium peroxide

B - Sodium sulphate

C - Sodium nitrate

D - Cuprous oxide

Answer : A

Explanation

N/A

Q 14 - …………. converts blue litmus paper into red.

A - Base

B - Acid

C - Salt solution

D - Simple water

Answer : B

Explanation

Litmus is water soluble mixture.

Q 15 - Tungsten (W) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : C

Explanation

Atomic number of Tungsten is 74.

Q 16 - Which among the following is used as sterilizer?

A - Hydrogen

B - Chlorine

C - Natural gas

D - Sulfur dioxide

Answer : B

Explanation

N/A

Q 17 - Consider the following statements:

1. Mendeleev arranged all the elements in increasing order of atomic mass and this arrangement is known as periodic table.

2. The horizontal line is known as ‘periods’ and the vertical line is known as ‘group.’

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

Total number of periods is seven and total number of groups is nine.

Q 18 - Which among the following is used in oil paintings?

A - Hydrogen peroxide

B - Helium peroxide

C - Acetylene

D - Butane

Answer : A

Explanation

N/A

Q 19 - Which among the following is not a noble metal?

A - Ag

B - Au

C - Pt

D - Ni

Answer : D

Explanation

Ni, which is nickel, is not a noble metal.

Q 20 - Which among the following is used as ant-acid to neutralize stomach acid and as laxative?

A - Magnesium hydroxide

B - Calcium hydroxide

C - Strontium hydroxide

D - Barium hydroxide

Answer : A

Explanation

The chemical formula of Magnesium hydroxide is [Mg(OH)2].

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