Chemistry Part 1 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 does decrease the rate of chemical reaction

A - Poison

B - Acidic solution

C - Basic solution

D - Moderator

Answer : A

Explanation

N/A

Answer : A

Explanation

Schrondingers wave equation describes quantum mechanical behavior.

Q 3 - Which among the following is used in cooking?

A - Hydrogen

B - Chlorine

C - Natural gas

D - Sulfur dioxide

Answer : C

Explanation

N/A

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.

Q 5 - The process in which one type of molecule or ion added to another is known as

A - Dissociation

B - Addition

C - Polymerization

D - Substitution

Answer : B

Explanation

N/A

Q 6 - Plaster of Paris contains

A - Magnesium

B - Calcium

C - Phosphorous

D - Arsenic

Answer : B

Explanation

N/A

Q 7 - is used in dry cleaning of garments.

A - Tetrachloroethylene

B - Lemon

C - Only detergent

D - Diesel

Answer : A

Explanation

Dry cleaning is a technique of cleaning cloth and other textiles with the help of chemical solvent; no water is used.

Answer : C

Explanation

N/A

Q 9 - Selenium (Se) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : B

Explanation

Atomic number of Selenium is 34.

Q 10 - Which among the following is used in discharge tube glow light?

A - Argon

B - Helium

C - Neon

D - Hydrogen

Answer : C

Explanation

N/A

Answer : B

Explanation

N/A

Q 12 - Which among the following is used in match industry?

A - Red phosphorus

B - Green phosphorous

C - Calcium sulphate

D - Potassium

Answer : A

Explanation

Red phosphorus is formed by heating of white phosphorus.

Q 13 - The onions odor is because of

A - Potassium

B - Sodium

C - Calcium

D - Hydrogen peroxide

Answer : A

Explanation

N/A

Q 14 - Molybdenum (Mo) is an element of

A - s block

B - p block

C - d block

D - f block

Answer : C

Explanation

Atomic number of Molybdenum is 42.

Q 15 - X-Rays are the bundles of

A - Photons

B - Electrons

C - Neutrons

D - Protons

Answer : A

Explanation

X-rays are a form of electromagnetic radiation.

Answer : B

Explanation

Rutherford first proposed his model in 1909.

Q 17 - Which among the following gases is used in fire suppression?

A - Nitrogen

B - Acetylene

C - Neon

D - Nitrous oxide

Answer : A

Explanation

Liquid nitrogen is used for cold storage and also in respiratory support in the health care.

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 - The process, by which ice directly changed into gas, is known as

A - Evaporation

B - Sublimation

C - Condensation

D - Conduction

Answer : B

Explanation

N/A

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].

chemistry_part1_online_quiz.htm
Advertisements