While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

Options

A. Threshing
B. Sieving
C. Winnowing
D. Filtration

Answer

To solve the problem of separating wheat grains from flour, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Components**: We have two components in this mixture: wheat grains and flour. The flour consists of fine particles, while the wheat grains are larger.

2. **Choose a Separation Method**: The most suitable method for separating these two components is sieving. This method is effective because it takes advantage of the size differences between the flour and the wheat grains.

3. **Set Up the Sieving Process**:
- Obtain a sieve or a fine mesh strainer. The sieve should have holes that are small enough to allow flour to pass through but large enough to retain the wheat grains.
- Place a container under the sieve to collect the flour that passes through.

4. **Sieve the Mixture**:
- Pour the mixture of flour and wheat grains into the sieve.
- Gently shake or tap the sieve. The fine flour particles will fall through the holes of the sieve and collect in the container below, while the larger wheat grains will remain in the sieve.

5. **Collect the Separated Components**:
- After sieving, you will have two separate components: flour collected in the container and wheat grains left in the sieve.

6. **Conclusion**: The sieving method effectively separates the flour from the wheat grains based on size differences.

### Final Answer:
The most suitable method to separate the grains from the flour is **sieving**.

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