General Science Basic Chemistry Quiz Online Test For Prep Questions with Answers Mcqs

Given over this page is a free online general science quiz which includes important Mcqs questions and answers related to the basic knowledge of Chemistry. All the individuals who are going to appear in any everyday science related written exam or interview are strongly recommended to use our tests as guide for easy and quick preparation.

General Science Basic Chemistry Quiz Online Test For Prep Questions with Answers Mcqs

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Basic Science

1. Atom bomb is based on the principal of?

None of these

Nuclear fission

Nuclear fusion

All of these

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Question 1 of 20

2. Rise in temperature, the conductivity of metals will:

Increases

Decreases

None of these

Remains unchanged

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Question 2 of 20

3. In fireworks, the green flame is produced because of:

Sodium

Potassium

Mercury

Barrium

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Question 3 of 20

4. Nameplates made of brass get discoloured in air because of the presence of which of the following gases in the air?

Hydrogen sulphide

Carbon dioxide

Oxygen

Nitrogen

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Question 4 of 20

5. Generally in a given period in the periodic table, as we move from left to right, the electropositive character of elements:

Increases

Neither increases nor decreases

Decreases then Increases

Decreases

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Question 5 of 20

6. Which of the following gases is used in fire extinguishers?

Carbon dioxide

Water vapour

Oxygen

Hydrogen

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Question 6 of 20

7. The liberation of energy in sun is due to?

Fission reaction

None of these

Fusion reaction

All of these

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Question 7 of 20

8. Which group of elements in the periodic table show highest first ionization potential. Elements in the:

None of these

All of these

Left hand top corner

Left hand bottom corner

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Question 8 of 20

9. Stains of rust from iron on cloth can be removed by:

Alcohol

Hydrogen peroxide

None of these

Oxalic acid

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Question 9 of 20

10. The reaction taking place at anode and cathode are respectively?

None of these

Oxidation, reduction

Reduction, Oxidation

Reduction, hydrolysis

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Question 10 of 20

11. In the periodic table, elements have been arranged?

In order of increasing volume

All of these

None of these

In order of increasing atomic number

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Question 11 of 20

12. During electrolysis, metals are deposited at the cathode, because the cathode,

Undergoes oxidation

None of these

Supplies electrons

Withdraw electrons

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Question 12 of 20

13. The reason for chlorination of water is:

To kill germs

To add taste

To add minerals

To propagate germs

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Question 13 of 20

14. Oxidation involves:

Gain in electron

Combustion

Loss of electrons

Gain of hydrogen

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Question 14 of 20

15. When radioactive rays are passed through air or any gas, they cause it to:

Freeze

Evaporate

Ionize

Boil

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Question 15 of 20

16. When we move from left to right in second period, the atomic volume of the element?

All of these

None of these

Increases with constant state

Increases

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Question 16 of 20

17. X-rays are produced when a stream of electrons in an X-ray tube?

Srikes metal target

Noneof these

All of these

Hits the glass wall of the tube

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Question 17 of 20

18. What is the chemical name of Baking Soda?

Sodium Carbonate

Sodium bicarbonate

Sodium Nitrate

Potassium

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Question 18 of 20

19. Cooking gas is a mixture of which of the following two gases?

Bautane and Propane

Oxygen and Nitrogen

Oxygen and Methane

Methane and Carbon dioxide

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Question 19 of 20

20. Ozone is present in which of the following layers of atmosphere:

Thermosphere

Troposphere and Thermosphere

Mesosphere

Troposphere and Stratosphere

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Question 20 of 20

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