Suggest the most important type of intermolecular interaction in the following pairs :
(v) Acetonitrile `(CH_(3)CN)` and acetone `(C_(3)H_(6)O)`.

Explanation

To determine the most important type of intermolecular interaction between acetonitrile (CH₃CN) and acetone (C₃H₆O), we can follow these steps:

### Step 1: Identify the molecular structure of acetonitrile and acetone.
- Acetonitrile (CH₃CN) is a polar molecule with a nitrile group (–C≡N) that has a significant dipole moment.
- Acetone (C₃H₆O) is also a polar molecule, characterized by a carbonyl group (C=O) which contributes to its dipole moment.

### Step 2: Analyze the polarity of the molecules.
- Both acetonitrile and acetone are polar due to the presence of electronegative atoms (N in acetonitrile and O in acetone) which create dipoles in the molecules.
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