Properties of three solid substances X, Y and Z are given below:
X: Heavy and non-magnetic Y: Light and non-magnetic Z: Magnetic
If X, Y and Z are of same size and colour then, which of the following can be used to separate these particles from their mixture?

Options

A. Handpicking followed by filtration
B. Magnetic separation followed by winnowing
C. Magnetic separation followed by sieving
D. Sublimation followed by distillation

Explanation

To solve the problem of separating the three solid substances X, Y, and Z based on their properties, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Properties of Each Substance:**
- Substance X: Heavy and non-magnetic
- Substance Y: Light and non-magnetic
- Substance Z: Magnetic

2. **Determine the Separation Techniques:**
- Since Z is magnetic, we can use a magnet to separate it from the other two substances (X and Y).
- After separating Z, we need to separate X and Y, which are both non-magnetic but differ in weight.

3. **Use Magnetic Separation:**
- Bring a magnet close to the mixture of X, Y, and Z. The magnetic substance Z will be attracted to the magnet and can be removed from the mixture.

4. **Use Winnowing for the Remaining Substances:**
- After removing Z, we are left with X and Y. Since X is heavy and Y is light, we can use a winnowing technique.
- In winnowing, we can pour the mixture into the air or use a fan. The lighter substance (Y) will be blown away, while the heavier substance (X) will fall down.

5. **Conclusion:**
- The correct method to separate the three substances is to first use magnetic separation to remove Z, followed by winnowing to separate X and Y.

### Final Answer:
The substances can be separated using **magnetic separation followed by winnowing**.

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