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Chemical Bonding and Molecular Structure

Sigma and pi bonds, hybridization

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1 Chemical Bonding and Molecular Structure Medium

Match List I with List II

Pick the matching item from Column II for each row.
Column I
- i. $C_2H_4$ Match for i
- ii. $C_2H_2$ Match for ii
- iii. $CH_4$ Match for iii
- iv. $NH_3$ Match for iv
Column II
- a. 3 $\sigma$ bonds, 2 $\pi$ bonds
- b. 3 $\sigma$ bonds, one lone pair
- c. 4 $\sigma$ bonds
- d. 5 $\sigma$ bonds, 1 $\pi$ bond
Correct answer: i → d, ii → a, iii → c, iv → b

$C_2H_4$ ($H_2C=CH_2$): 5 $\sigma$ bonds, 1 $\pi$ bond $C_2H_2$ ($H-C \equiv C-H$): 3 $\sigma$ bonds, 2 $\pi$ bonds $CH_4$: 4 $\sigma$ bonds $NH_3$: 3 $\sigma$ bonds, 1 lone pair Correct match: i-d, ii-a, iii-c, iv-b.