Hand Picking Method of Separation:
Hand picking is a method of separation where substances are separated manually based on their physical properties. This method is commonly used when the substances to be separated have noticeable differences in size, shape, or other physical characteristics.

Process:
- The process involves simply picking out the desired substance by hand from a mixture of substances.
- The substances are usually spread out on a flat surface, making it easier to visually identify and separate them.

Example:
- A common example of hand picking is separating stones from grains. In this case, the larger stones can be easily picked out by hand from the smaller grains.

Advantages:
- Hand picking is a simple and cost-effective method of separation.
- It does not require any special equipment or chemicals.

Limitations:
- Hand picking is not suitable for separating substances that are very similar in physical properties.
- It can be time-consuming and labor-intensive, especially for large quantities of substances.
In conclusion, hand picking is a basic but effective method of separation that relies on manual sorting based on physical characteristics. It is best suited for situations where substances have noticeable differences that make them easy to distinguish and separate by hand.