Basic Chemistry Test Preparation Online Mcqs

Basic Chemistry Test Preparation Online Mcqs With Answer Start Below

Basic Science

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

Question 1 of 20

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

Question 2 of 20

3. What is the chemical name of Baking Soda?

Question 3 of 20

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

Question 4 of 20

5. Oxidation involves:

Question 5 of 20

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

Question 6 of 20

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

Question 7 of 20

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

Question 8 of 20

9. The reason for chlorination of water is:

Question 9 of 20

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

Question 10 of 20

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

Question 11 of 20

12. Atom bomb is based on the principal of?

Question 12 of 20

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

Question 13 of 20

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

Question 14 of 20

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

Question 15 of 20

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

Question 16 of 20

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

Question 17 of 20

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

Question 18 of 20

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

Question 19 of 20

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

Question 20 of 20


 

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