1. The bond formed by transfer of electron between atoms is called
(A) Ionic bond
(B) Covalent bond
(C) Polar bond
(D) Sigma bond
2. The bond formed by mutual sharing of electrons between atoms is called
(A) Covalent bond
(B) Ionic bond
(C) Polar bond
(D) Sigma bond
3. Shared electron pair is given by one atom only in ______ bond
(A) Coordinate covalent
(B) Covalent
(C) Polar
(D) Ionic
4. Point out the compound having ionic bond
(A) CO₂
(B) KCl
(C) H₂O
(D) HCl
5. Ionic compounds are mostly soluble in
(A) Benzene
(B) Alcohol
(C) Water
(D) Ammonia
6. Point out the compound with covalent bond
(A) HCl
(B) KBr
(C) NaCl
(D) KCl
7. In which compound coordinate covalent bond is present
(A) NH₄⁺
(B) H₂O
(C) KCl
(D) CO₂
8. In nitrogen molecule the number of pi bonds is
(A) 1
(B) 2
(C) 3
(D) 4
9. The parallel overlapping of orbitals takes place in
(A) Sigma bond
(B) Pi bond
(C) Polar bond
(D) Non-polar bond
10. The atom that gives an electron pair in coordinate covalent bond is called
(A) Pi
(B) Recipient
(C) Sigma
(D) Donor
11. The atom that takes an electron pair in coordinate covalent bond is called
(A) Donor
(B) Acceptor
(C) Sigma
(D) Pi
12. Triple covalent bond is represented by the lines
(A) Two
(B) Five
(C) Four
(D) Three
13. The concept of ionic bond was presented by
(A) Dalton
(B) Lewis
(C) Kossel
(D) Bohr
14. The concept of covalent bond was presented by
(A) Kossel
(B) Bohr
(C) Dalton
(D) Lewis
15. Double covalent bond is present in the molecule
(A) Oxygen
(B) Water
(C) Nitrogen
(D) Chlorine
16. If electronegativity difference is greater than 1.7, the bond is
(A) Ionic
(B) Covalent
(C) Polar
(D) Coordinate covalent
17. In covalent bond one electron pair is shared between atoms
(A) Zero
(B) Double
(C) Triple
(D) Single
18. We put ______ between donor and acceptor atoms in coordinate covalent bond
(A) Line
(B) Arrow
(C) Dash
(D) Hyphen
19. Point out the molecule having polar bond
(A) CH₄
(B) CO₂
(C) NaCl
(D) H₂O
20. In ______ bond the shared electron pair is attracted unequally
(A) Non-polar covalent
(B) Polar covalent
(C) Sigma
(D) Ionic