Refer to the periodic table given in your book and now answer the following questions:
a. Select the possible non metals that can show disproportionation reaction.
b. Select three metals that can show disproportionation reaction.

Explanation

To solve the question regarding disproportionation reactions, we will break it down into two parts: identifying non-metals and metals that can undergo these reactions.

### Part A: Non-Metals that can Show Disproportionation Reaction

1. **Identify Non-Metals**: From the periodic table, we focus on non-metals. Common non-metals include phosphorus (P), chlorine (Cl), and sulfur (S).

2. **Phosphorus (P)**:
- Phosphorus can undergo disproportionation. For example, in the reaction:
...