Online Test of Chapter 5 Periodic Classification of Elements MCQ Science| Class 10th

Question :-

1. How many horizontal rows or periods are present in the modern periodic table?
(a) 5
(b) 7
(c) 6
(d) 8

2. Maximum number of electron filled in a shell is given by ___________
(a) 2n²
(b) 3n²
(c) 5n²
(d) None of these

3. Atoms of the elements belonging to the same group of periodic table will have
(a) Same number of protons
(b) Same number of electrons in the valence shell
(c) Same number of neutrons
(d) Same number of electrons

4. Oxides of metal are _________ in nature.
(a) Basic
(b) Acidic
(c) Amphoteric
(d) None of these

5. Oxides of non – metal are __________ in nature.
(a) Basic
(b) Acidic
(c) Amphoteric
(d) None of these

6. Non-metallic character __________ as we move down a group
(a) Increases
(b) Decreases
(c) Remains same
(d) None of these

7. Metallic character __________ as we move down a group.
(a) Increases
(b) Decreases
(c) Remains same
(d) None of these

8. Non-metallic character __________ across a period.
(a) Increases
(b) Decreases
(c) Remains same
(d) None of these

9. Metallic character __________ across a period.
(a) Increases
(b) Decreases
(c) Remains same
(d) None of these

10. Metals are __________ and non – metals are _____________
(a) Electropositive and Electronegative
(b) Electronegative and Electropositive
(c) Electropositive and Electropositive
(d) Electronegative and Electronegative