Chemistry Part 2 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 - Curium (Cm) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : D

Explanation

Atomic number of Curium is 96.

Q 2 - Consider the following statements:

1. The number of proton or electron in an atom of the element is called atomic number.

2. The sum of number or protons and neutrons in an atom of the element is known as mass number.

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 3 - Which among the following is used as anaesthetics?

A - Ammonia

B - Ether

C - Ethylene

D - Krypton

Answer : B

Explanation

Ether is also used in industrial process.

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 - In the self-starting engines, ………………. is used as an anti-freezing substance.

A - Ethylene glycol

B - Ethanol

C - Methanol

D - Butane

Answer : A

Explanation

Earlier methanol was used as anti-freezing element, but methanol was not much suitable, as it accelerates corrosion.

Q 6 - Plaster of Paris contains …

A - Magnesium

B - Calcium

C - Phosphorous

D - Arsenic

Answer : B

Explanation

N/A

Q 7 - The pH value of milk is …

A - 6

B - 8

C - 6.6

D - 3.8

Answer : C

Explanation

The pH value of milk ranges between 6.5 and 6.7.

Q 8 - Which among the following is known as ‘oil of vitriol?’

A - Sulphuric acid

B - Hydrochloric acid

C - Hydrofluoric acid

D - Hydrofluoric acid

Answer : A

Explanation

As the Sulfuric acid is prepared by roasting of green vitriol; therefore, it is known as oil of vitriol.

Q 9 - Tin (Sn) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : B

Explanation

Atomic number of Tin is 50.

Q 10 - While burning crackers, deep red light is produced because of …………………….

A - Barium

B - Lithium

C - Beryllium

D - Strontium

Answer : A

Explanation

N/A

Q 11 - Astatine (At) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : B

Explanation

Atomic number of Astatine is 85.

Q 12 - Consider the following statements:

1. Cellulose can be hydrolyzed to glucose and then converted to enthanol by fermentation.

2. Fermentation process can also be used to produce a series of oxygenated compounds including alcohols.

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 13 - Copper (Cu) is an element of …

A - s block

B - p block

C - d block

D - f block

Answer : C

Explanation

Atomic number of Copper is 29.

Q 14 - Potassium nitrate is used in …

A - Fertilizer

B - Bakery

C - Gunpowder

D - Photography

Answer : C

Explanation

Potassium nitrate is also known as black powder.

Q 15 - Consider the following statements:

1. Uranium is a radio-active element.

2. Uranium is used in making atom bomb.

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 16 - Consider the following statements:

1. The amount of energy released during the formation of one mole of an ionic compound from its constituent ions is known as ‘Lattice energy.’

2. The amount of energy released during the dissolution of one mole of a compound into water, is known as hydration energy.

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 - The chemical, which is used in breathing gas purification system especially for submarine and spacecraft, is known as …

A - Lithium hydroxide

B - Sodium hydroxide

C - Potassium hydroxide

D - Rubidium hydroxide

Answer : A

Explanation

The chemical formula of Lithium hydroxide is LiOH.

Q 18 - Consider the following statements:

1. Saccharin is white crystalline solid substance.

2. Saccharin is 1000 times sweeter than the sugar.

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

Saccharin is about 300 to 500 times sweeter than sugar. It is used by diabetic patients.

Q 19 - …………………... is used in election (while voting) as marker.

A - Silver chloride

B - Silver iodide

C - Silver nitrate

D - Zinc oxide

Answer : C

Explanation

The chemical formula of silver nitrate is AgNO3.

Q 20 - Which among the following is used in manufacturing of Vanaspati ghee, alcohol, etc?

A - Oxygen

B - Hydrogen

C - Helium

D - Argon

Answer : B

Explanation

N/A

chemistry_part2_online_quiz.htm
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