The steps involved in the separation of camphor and sand from a mixture are given below. Arrange them in a proper sequence. (1) The wet cloth is placed over the funnel and the stem is closed with a cotton plug. (2) The mixture of camphor and sand is taken in the china dish and an inverted funnel is kept on it. (3) The vapours are cooled and condensed to form the same solid and sand left behind in the dish. (4) The mixture is heated gently where the vapours of camphor is formed.

Options

A. 2,3,4,1
B. 4,1,2,3
C. 2,1,4,3
D. 3,4,2,1

Explanation

To separate camphor and sand from a mixture, we can follow these steps in the correct sequence:

1. **Step 1**: The mixture of camphor and sand is taken in a china dish and an inverted funnel is kept on it.
- This step is crucial as it prepares the setup for the sublimation process.

2. **Step 2**: The wet cloth is placed over the funnel and the stem is closed with a cotton plug.
- This prevents the escape of camphor vapors, ensuring that they are condensed back into solid camphor.

3. **Step 3**: The mixture is heated gently where the vapors of camphor are formed.
- Heating causes the camphor to sublimate, turning from solid to gas.

4. **Step 4**: The vapors are cooled and condensed to form the same solid, and sand is left behind in the dish.
- This step completes the separation process, allowing the camphor to return to its solid form while leaving the sand behind.

So, the correct sequence is: **2, 1, 4, 3**.