1. The forces that bind atoms together is:
(A) Attraction
(B) Gravity
(C) Friction
(D) Repulsion
2. Noble gases have valency of:
(A) Zero
(B) 1
(C) 2
(D) 8
3. Getting 2 electrons in outermost shell is called:
(A) Octet rule
(B) None
(C) Hund’s rule
(D) Duplet rule
4. Getting 8 electrons in outermost shell is called:
(A) Octet rule
(B) Duplet rule
(C) Hund’s rule
(D) None
5. The bond formed by complete transfer of electron is:
(A) Covalent
(B) Ionic
(C) Metallic
(D) Hydrogen bond
6. Which of the following is an ionic compound:
(A) CH₃COOH
(B) HCl
(C) H₂O
(D) NaCl
7. Which of the following groups in periodic table join to give ionic bond:
(A) 2nd and 6th
(B) 1st and 2nd
(C) 4th and 2nd
(D) 1st and 7th
8. If electronegativity difference is more than 1.7, the bond will be:
(A) Covalent
(B) Ionic
(C) Metallic
(D) Hydrogen bond
9. Which of the following is an ionic compound:
(A) NaCl
(B) NaF
(C) All of these
(D) MgCl₂
10. Ionic bond is formed when:
(A) High I.E and low E.A
(B) High I.E and low E.A
(C) Low I.E and low E.A
(D) Low I.E and high E.A
11. The bond formed by mutual sharing of electrons is called:
(A) Ionic
(B) Covalent
(C) Metallic
(D) Hydrogen bond
12. If electronegativity difference is less than 1.7, the bond will be:
(A) Ionic
(B) Hydrogen bond
(C) Metallic
(D) Covalent
13. The possible type of bond formed between two non-metals is:
(A) Ionic
(B) Metallic
(C) Covalent
(D) Hydrogen bond
14. Number of electrons took part in triple covalent bond is:
(A) 2
(B) 4
(C) 8
(D) 6
15. Which of the following is an example of single covalent bond:
(A) CH₄
(B) O₂
(C) N₂
(D) None
16. Number of electrons took part in double covalent bond is:
(A) 2
(B) 8
(C) 6
(D) 4
17. Which type of bond is present in diamond?
(A) Ionic
(B) Hydrogen bond
(C) Metallic
(D) Covalent
18. The other name of coordinate covalent bond is:
(A) Dative
(B) Covalent
(C) Metallic
(D) Ionic
19. The example of coordinate covalent bond is:
(A) CH₄
(B) NH₄
(C) H₂O
(D) All of these
20. Which of following compound is 100% ionic:
(A) none
(B) HF
(C) HCl
(D) NaCl