eVidyarthi

Modern Periodic Law Quizz

Ads

MCQ’s For All Chapters – Chemistry Class 11th

1. Lothar Meyer arranged the elements in order of increasing:

Your comments:

Question 1 of 20

2. Law of Octaves was proposed by:

Your comments:

Question 2 of 20

3. Law of Triads is applicable to which set of elements?

Your comments:

Question 3 of 20

4. In Mendeleev's periodic table, the groups were divided into how many subgroups?

Your comments:

Question 4 of 20

5. Modern periodic table is divided into:

Your comments:

Question 5 of 20

6. Moseley performed experiments and studied the frequencies of which radiations emitted from the elements?

Your comments:

Question 6 of 20

7. Among the following statements the one that is not true about Mendeleev's Periodic Table is:

Your comments:

Question 7 of 20

8. Which scientist proposed that atomic number is more fundamental property of an element than its atomic mass?

Your comments:

Question 8 of 20

9. Johann Dobereiner classified elements in group of three elements called as

Your comments:

Question 9 of 20

10. In the modern periodic table, which period contains 32 elements?

Your comments:

Question 10 of 20

11. Horizontal rows in the periodic table are called:

Your comments:

Question 11 of 20

12. The second and third period of the modern periodic table contains how many elements?

Your comments:

Question 12 of 20

13. Newland arranged elements in increasing order of atomic weights and noted that every eighth element had properties similar to:

Your comments:

Question 13 of 20

14. According to Dobereiner's law of triads the number of elements present in each group is:

Your comments:

Question 14 of 20

15. Lothar Meyer proposed that on arranging the elements in order of increasing atomic weights; similarities appear in which type of properties?

Your comments:

Question 15 of 20

16. Eka silicon predicted by Mendeleev is which element:

Your comments:

Question 16 of 20

17. Eka aluminium predicted by Mendeleev is which element?

Your comments:

Question 17 of 20

18. The basis of long form of periodic table is:

Your comments:

Question 18 of 20

19. Mendeleev predicted the existence of which element/elements in the periodic table?

Your comments:

Question 19 of 20

20. At present how many elements are known?

Your comments:

Question 20 of 20