Among the following, the INCORRECT statement about colloids is :

Options

A. They can scatter light
B. The osmotic pressure of a colloidal solution is of higher order than the true solution at the same concentration
C. The range of diameters of colloidal particles is between 1 and 1000 nm
D. They are larger than small molecules and have high molar mass

Explanation

To determine the incorrect statement about colloids, let's analyze each option provided in the question step by step.

### Step 1: Understanding Colloids
Colloids are mixtures where insoluble particles of one substance are suspended in another. The size of these particles typically ranges from 1 nanometer to 1000 nanometers.

### Step 2: Evaluating Each Statement
1. **Statement 1**: "They can scatter light."
- Colloids exhibit the Tyndall effect, which means they can scatter light. This statement is **correct**.
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