Which of the following statement is not correct?

Options

A. The units of surface tension are dynes `cm^(-1)`
B. The units of viscosity coefficient of a liquid is ‘poise’
C. CsCl crystallizes in body centred cubic type of lattice
D. The coordination number of `S^(2-)` in ZnS is 6

Explanation

To solve the question "Which of the following statement is not correct?", we will analyze each of the provided statements step by step.

### Step 1: Analyze the first statement
**Statement 1:** The units of surface tension are dynes per centimeter.

- Surface tension (γ) is defined as the force (F) per unit length (L) along which the force acts.
- In SI units, surface tension is expressed as Newtons per meter (N/m), while in CGS units, it is expressed as dynes per centimeter (dyn/cm).
- Since dynes per centimeter is indeed a correct unit for surface tension, this statement is correct.
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