Critical micelle concentration for a soap solution is `1.5 xx 10^(-4)" mol L"^(-1)`. Micelle formation is possible only when the concentration of soap solution in mol `L^(-1)` is

Options

A. `2.0 xx 10^(-3)`
B. `4.6 xx 10^(-5)`
C. `7.5 xx 10^(-5)`
D. `1.1 xx 10^(-4)`

Explanation

To determine the concentration of soap solution at which micelle formation is possible, we need to understand the concept of critical micelle concentration (CMC).

### Step-by-Step Solution:

1. **Understanding CMC**: The critical micelle concentration (CMC) is the minimum concentration of surfactants (in this case, soap) in a solution at which micelles start to form. Below this concentration, surfactant molecules remain mostly as individual molecules in the solution.

2. **Given CMC Value**: The problem states that the CMC for the soap solution is \(1.5 \times 10^{-4} \, \text{mol L}^{-1}\).

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