Match List I with List II.

| List I (Molecule) | List II (Number and type of bonds between two carbon atoms) |
|---|---|
| A. ethane | I. one σ-bond and two π-bonds |
| B. ethene | II. two π-bonds |

Question

Match List I with List II.

| List I (Molecule) | List II (Number and type of bonds between two carbon atoms) |
|---|---|
| A. ethane | I. one σ-bond and two π-bonds |
| B. ethene | II. two π-bonds |
| C. carbon molecule, \mathrm{C2} | III. one σ-bond |
| D. ethyne | IV. one σ-bond and one π-bond |

Choose the correct answer from the options given below:

Vishal Gupta · Accepted Answer

B. Ethane: one C–C σ bond (III). Ethene: one σ and one π (IV). Ethyne: one σ and two π (I). By molecular orbital theory the \mathrm{C2} molecule has a double bond made of two π bonds only (II). Hence A-III, B-IV, C-II, D-I.

Chemical Bonding and Molecular Structure

More from this chapter in past papers