Which of the following mixture are homogeneous ?
(a) Tap water , (b) air , ( c) soil , (d) smoke, (e) cloud

Explanation

To determine which of the following mixtures are homogeneous, we need to understand the definition of homogeneous mixtures. A homogeneous mixture is one in which the components are uniformly mixed and cannot be easily distinguished from one another. In contrast, a heterogeneous mixture has components that are not uniformly mixed and can often be seen as separate entities.

Let's analyze each option:

1. **Tap Water**:
- Tap water is a solution that contains dissolved minerals and impurities. Since these components are uniformly mixed, tap water is a homogeneous mixture.

2. **Air**:
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