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) Ionic
(B) co-ordinate covalent
(C) polar
(D) covalent
4. Point out the compound having ionic bond
(A) KCl
(B) H₂O
(C) CO₂
(D) HCl
5. Ionic compounds are mostly soluble in
(A) alcohol
(B) water
(C) benzene
(D) ammonia
6. Point out the compound with covalent bond
(A) HCl
(B) KBr
(C) NaCl
(D) KCl
7. In which compound co-ordinate covalent bond is present
(A) CO₂
(B) NH₄⁺
(C) KCl
(D) H₂O
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) non polar bond
(B) sigma bond
(C) polar bond
(D) Pi bond
10. The atom that gives an electron pair in coordinate covalent bond is called
(A) donor
(B) recipient
(C) sigma
(D) pi
11. The atom that takes an electron pair in coordinate covalent bond is called
(A) accepter
(B) donor
(C) sigma
(D) pi
12. Triple covalent bond is represented by the lines
(A) two
(B) three
(C) four
(D) five
13. The concept of ionic bond was presented by
(A) Bohar
(B) Lewis
(C) Dalton
(D) Kossel
14. The concept of covalent bond was presented by
(A) Kossel
(B) Bohar
(C) Dalton
(D) Lewis
15. Double covalent bond is present in the molecule
(A) oxygen
(B) Water
(C) nitrogen
(D) chlorine
16. Electronegativity difference between atoms is greater than 1.7, the bond is
(A) covalent
(B) Ionic
(C) polar
(D) co-ordinate covalent
17. In ____ covalent bond one electron pair is shared between atoms
(A) single
(B) double
(C) triple
(D) zero
18. We put ______ between donor and accepter 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) H₂O
(D) NaCl
20. In ____ bond the shared electron pair is attracted unequally
(A) non-polar covalent
(B) polar covalent
(C) sigma
(D) ionic