Basic Chemistry Test Preparation Online Mcqs

Basic Chemistry Test Preparation Online Mcqs With Answer Start Below

Basic Science

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

Question 1 of 20

2. Oxidation involves:

Question 2 of 20

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

Question 3 of 20

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

Question 4 of 20

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

Question 5 of 20

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

Question 6 of 20

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

Question 7 of 20

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

Question 8 of 20

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

Question 9 of 20

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

Question 10 of 20

11. What is the chemical name of Baking Soda?

Question 11 of 20

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

Question 12 of 20

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

Question 13 of 20

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

Question 14 of 20

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

Question 15 of 20

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

Question 16 of 20

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

Question 17 of 20

18. The reason for chlorination of water is:

Question 18 of 20

19. Atom bomb is based on the principal of?

Question 19 of 20

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

Question 20 of 20


 

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