Chemical Bonding and molecular structure Multiple choice questions (MCQs) || Chemical bonding MCQs || Chapter 4 class 11 Chemistry MCQs ||

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1. In which of the following, the bond angle between two covalent bonds is the maximum ? (a) H2O

(b) NH3

(c) CO2

(d) CH4

Ans : (c) CO2

2. The hybridisation of C involved in acetylene is 

(a) s p²

(b) s p³

(c) s p

(d) d s p²

Ans: (c) s p

3. Which of the following is not correct resonating structure for carbon dioxide ?

(a) O=C=0 

(b) O - C=0 

(c) 0 - C =0 

(d) O= C - O

Ans: (c) 0 - C =0

4. Which of the following has maximum covalent character?

(a) Li I

(b) Li F

(c)  Li Cl

(d) Li Br.

Ans: (a) Li I

5. Which of the following exception to octet rule?

(a) BF3

(b) PF5

(c) CO2

(d) I F 7

Ans: (c) CO2

6. For which of the following hybridisation the bond angle is maximum ?

(a) s p²

(b) s p³

(c) s p

(d) d s p²

Ans: (c) s p

7. Which one has minimum dipole moment ?

(a) Butene-1

(b) cis-Butene-2

(c) trans-Butene-2

(d) 2-Methyl propene.

Ans: (c) trans-Butene-2

8. Which of the following has highest lattice energy? 

(a) Li F

(b) Na F

(c) K F

(d) Rb F.

Ans: (a) Li F

9. Which of the following molecule has net dipole moment ?

(a) C Cl4

(b) C2H2

(c) BF3

(d) NH3

Ans: (d) NH3

10. Ratio of pi to sigma bonds in benzene is

(a) 1:2

(b) 1:6

(c) 1:4

(d) 1:1

Ans: (c) 1:4

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