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 - Which among the following correctly defines the ‘vanishing cream?’

A - It is sort of foam

B - It is true chemical solution

C - It is solid emulsion

D - It is natural solution

Answer : C

Explanation

Vanishing cream disappears as soon as it is rubbed on the skin.

Q 2 - Wave Nature of electron was defined by …

A - Schrodinger’s wave equation

B - de-Broglie’s equation

C - Bohr’s model

D - Plank’s Quantum theory

Answer : A

Explanation

Schrondinger’s wave equation describes quantum mechanical behavior.

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 - Which among the following is used in paper and petroleum industries?

A - Lithium hydroxide

B - Sodium hydroxide

C - Potassium hydroxide

D - Rubidium hydroxide

Answer : B

Explanation

The chemical formula of Sodium hydroxide is NaOH.

Q 5 - Use of radium is largely replaced by ….

Answer : A

Explanation

Radium is more dangerous radioactive element.

Q 6 - The process, used for the preparation of saturated or unsaturated hydrocarbons by the electrolysis of solutions of the alkali salts of aliphatic carboxylic acids, is known as …

A - Haber Process

B - Kolbe Reaction

C - Salvay Process

D - Bayer Process

Answer : B

Explanation

N/A

Q 7 - Why is diesel used as the fuel of heavy vehicles?

A - It has high power and compression ratio

B - It is cheaper

C - It is easily available

D - It is found in abundance

Answer : A

Explanation

N/A

Q 8 - Fluorine (F) is an element of …

Answer : B

Explanation

Atomic number of Fluorine is 9.

Q 9 - Which among the following is used in weather indicator?

Answer : B

Explanation

Helium is also used in balloon.

Q 10 - Which among the following is used to make water proof and stainless clothe?

A - Aluminum hydroxide

B - Calcium carbide

C - Ferric oxide

Answer : A

Explanation

The chemical formula of aluminum hydroxide is Al(OH)₃.

Q 11 - Which among the following is kept in iron pot?

D - Liquid silver

Answer : A

Explanation

Mercury is kept in iron pot so that it cannot form amalgam with iron.

Q 12 - Which among the following is used in killing rats?

A - Zinc phosphide

B - Zinc phosphate

C - Zinc chloride

D - Zinc nitrate

Answer : A

Explanation

The chemical formula of zinc phosphide is Zn3P2.

Q 13 - Consider the following statements:

1. Nitrogen plays very important role in protein synthesis.

2. Nitrogen is used for refrigeration.

Choose the correct answer from the codes given below:

D - Neither 1 nor 2

Answer : C

Explanation

Ammonia is a significant compound of nitrogen.

Q 14 - Pure water is a poor conductor of electricity because …

A - It is hardly ionized

B - Its boiling point is very low

C - Its freezing point is high

D - Its surface tension is low

Answer : A

Explanation

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

Q 15 - X-Rays are the bundles of …

Answer : A

Explanation

X-rays are a form of electromagnetic radiation.

Q 16 - Lanthanum (La) is an element of …

Answer : D

Explanation

Atomic number of Lanthanum is 57.

Q 17 - Which among the following gases is used in anesthetic in dental surgery?

D - Nitrous oxide

Answer : D

Explanation

N/A

Q 18 - Which among the following is used in making blue glass?

B - Chromium III oxide

C - Manganese IV oxide

D - Copper II oxide

Answer : D

Explanation

Cobalt II oxide is also used in making glass blue.

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

A - Silver chloride

B - Silver iodide

C - Silver nitrate

Answer : C

Explanation

The chemical formula of silver nitrate is AgNO₃.

Q 20 - Consider the following statements:

1. Oxygen can be prepared in a laboratory by heating potassium chlorate and Manganese dioxide.

2. Oxygen can be separated from the air by passing an electric current through water.

Choose the correct answer from the codes given below:

D - Neither 1 nor 2

Answer : C

Explanation

Oxygen is very important for all organisms.

chemistry_part2_online_quiz.htm

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