Question Paper
Class / Subject: Class 9 (ICSE) · Chemistry
Chapter: Chapter 1 — Chapter 1: The Language of Chemistry
Time Allowed: 32 minutes
Max Marks: 16
1. What is a chemical symbol? [1]
(A) A universal shorthand for an element
(B) A type of formula only
(C) A type of equation only
(D) Nothing specific
2. What is the symbol for sodium? [1]
(A) Na
(B) S
(C) So
(D) N
3. What does a chemical formula show? [1]
(A) Elements and their ratio in a compound
(B) Only the compound's name
(C) Only its colour
(D) Nothing useful
4. How many hydrogen atoms are in H2SO4? [1]
(A) 2
(B) 1
(C) 4
(D) 3
5. What law does balancing equations follow? [1]
(A) Conservation of mass
(B) Conservation of energy only
(C) No specific law
(D) Random assignment
6. What is valency? [1]
(A) An element's combining capacity
(B) A type of chemical symbol
(C) A type of formula
(D) Nothing specific
7. What does valency help determine? [1]
(A) How many bonds an atom can form
(B) Only the colour of an element
(C) Only its weight
(D) Nothing useful
8. Why is chemical language useful? [1]
(A) It enables precise global communication
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is a chemical symbol? [1]
(A) A universal shorthand for an element
(B) A type of formula only
(C) A type of equation only
(D) Nothing specific
10. What is the symbol for sodium? [1]
(A) Na
(B) S
(C) So
(D) N
11. What does a chemical formula show? [1]
(A) Elements and their ratio in a compound
(B) Only the compound's name
(C) Only its colour
(D) Nothing useful
12. How many hydrogen atoms are in H2SO4? [1]
(A) 2
(B) 1
(C) 4
(D) 3
13. What law does balancing equations follow? [1]
(A) Conservation of mass
(B) Conservation of energy only
(C) No specific law
(D) Random assignment
14. What is valency? [1]
(A) An element's combining capacity
(B) A type of chemical symbol
(C) A type of formula
(D) Nothing specific
15. What does valency help determine? [1]
(A) How many bonds an atom can form
(B) Only the colour of an element
(C) Only its weight
(D) Nothing useful
16. Why is chemical language useful? [1]
(A) It enables precise global communication
(B) No reason
(C) It's not useful
(D) Only for tests