1. . The bond formed by transfer of electron between atoms is called
(A) sigma bond
(B) covalent bond
(C) polar bond
(D) Ionic 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) CO2
(B) H2O
(C) KCl
(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 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) sigma bond
(B) Pi bond
(C) polar bond
(D) non polar bond
10. . The atom that gives an electron pair in coordinate covalent bond
(A) sigma
(B) recipient
(C) donor
(D) pi
11. . The atom that takes an electron pair in coordinate covalent bond is called
(A) donor
(B) pi
(C) sigma
(D) accepter
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) 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) polar
(B) covalent
(C) Ionic
(D) co-ordinate covalent
17. . In covalent bond one electron pair is shared between atoms
(A) double
(B) single
(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) H2O
(C) CO2
(D) NaCl
20. . In ______ bond the shared electron pair is attracted unequally
(A) sigma
(B) non-polar covalent
(C) polar covalent
(D) ionic