Question Paper
Class / Subject: Class 10 (ICSE) · Chemistry
Chapter: Chapter 1 — Chapter 1: Periodic Properties and Variation of Properties
Time Allowed: 32 minutes
Max Marks: 16
1. How does atomic size change across a period? [1]
(A) Decreases
(B) Increases
(C) Stays the same
(D) Changes randomly
2. How does atomic size change down a group? [1]
(A) Increases
(B) Decreases
(C) Stays the same
(D) Changes randomly
3. How does metallic character change across a period? [1]
(A) Decreases
(B) Increases
(C) Stays the same
(D) Changes randomly
4. How does metallic character change down a group? [1]
(A) Increases
(B) Decreases
(C) Stays the same
(D) Changes randomly
5. How does valency change from group 1 to 4? [1]
(A) Increases from 1 to 4
(B) Decreases from 1 to 4
(C) Stays the same
(D) Changes randomly
6. What happens to ionisation energy across a period? [1]
(A) It increases
(B) It decreases
(C) It stays the same
(D) It becomes zero
7. What happens to ionisation energy down a group? [1]
(A) It decreases
(B) It increases
(C) It stays the same
(D) It becomes zero
8. Why study periodic trends? [1]
(A) To predict and explain element properties
(B) No reason
(C) It's not useful
(D) Only for tests
9. How does atomic size change across a period? [1]
(A) Decreases
(B) Increases
(C) Stays the same
(D) Changes randomly
10. How does atomic size change down a group? [1]
(A) Increases
(B) Decreases
(C) Stays the same
(D) Changes randomly
11. How does metallic character change across a period? [1]
(A) Decreases
(B) Increases
(C) Stays the same
(D) Changes randomly
12. How does metallic character change down a group? [1]
(A) Increases
(B) Decreases
(C) Stays the same
(D) Changes randomly
13. How does valency change from group 1 to 4? [1]
(A) Increases from 1 to 4
(B) Decreases from 1 to 4
(C) Stays the same
(D) Changes randomly
14. What happens to ionisation energy across a period? [1]
(A) It increases
(B) It decreases
(C) It stays the same
(D) It becomes zero
15. What happens to ionisation energy down a group? [1]
(A) It decreases
(B) It increases
(C) It stays the same
(D) It becomes zero
16. Why study periodic trends? [1]
(A) To predict and explain element properties
(B) No reason
(C) It's not useful
(D) Only for tests