Question Paper
Class / Subject: Class 9 (ICSE) · Chemistry
Chapter: Chapter 4 — Chapter 4: Atomic Structure and Chemical Bonding
Time Allowed: 32 minutes
Max Marks: 16
1. What is ionic bonding? [1]
(A) Transfer of electrons between atoms
(B) Sharing of electrons between atoms
(C) No electron interaction
(D) Only physical mixing
2. What is an example of ionic bonding? [1]
(A) NaCl (table salt)
(B) H2O (water)
(C) O2 (oxygen gas)
(D) N2 (nitrogen gas)
3. What is covalent bonding? [1]
(A) Sharing of electrons between atoms
(B) Transfer of electrons between atoms
(C) No electron interaction
(D) Only physical mixing
4. What is an example of covalent bonding? [1]
(A) H2O (water)
(B) NaCl (table salt)
(C) A metal alloy
(D) A physical mixture
5. Why do atoms bond? [1]
(A) To achieve a stable electron configuration
(B) For no reason
(C) To become unstable
(D) To lose all electrons
6. What rule often guides bonding? [1]
(A) The octet rule
(B) No specific rule
(C) Random chance
(D) Only weight-based rules
7. What often characterises ionic compounds? [1]
(A) High melting points
(B) Always low melting points
(C) No melting point
(D) Random melting points
8. Why understand bonding types? [1]
(A) To explain compound properties
(B) No reason
(C) It's not useful
(D) Only for tests
9. What is ionic bonding? [1]
(A) Transfer of electrons between atoms
(B) Sharing of electrons between atoms
(C) No electron interaction
(D) Only physical mixing
10. What is an example of ionic bonding? [1]
(A) NaCl (table salt)
(B) H2O (water)
(C) O2 (oxygen gas)
(D) N2 (nitrogen gas)
11. What is covalent bonding? [1]
(A) Sharing of electrons between atoms
(B) Transfer of electrons between atoms
(C) No electron interaction
(D) Only physical mixing
12. What is an example of covalent bonding? [1]
(A) H2O (water)
(B) NaCl (table salt)
(C) A metal alloy
(D) A physical mixture
13. Why do atoms bond? [1]
(A) To achieve a stable electron configuration
(B) For no reason
(C) To become unstable
(D) To lose all electrons
14. What rule often guides bonding? [1]
(A) The octet rule
(B) No specific rule
(C) Random chance
(D) Only weight-based rules
15. What often characterises ionic compounds? [1]
(A) High melting points
(B) Always low melting points
(C) No melting point
(D) Random melting points
16. Why understand bonding types? [1]
(A) To explain compound properties
(B) No reason
(C) It's not useful
(D) Only for tests