Write any six examples where the hand picking method is used
Answers
Explanation:
Hand picking is a separation technique used to remove the unwanted impurities from the mixture by hand.Hand picking methods can be used when items differ on the basis of colour, shape, and weight.
Examples:
☆Separating rotten vegetables from the basket of fresh vegetables.
☆Separating stones and insects from the rice.
☆Separating green grapes from black grapes.
☆Separating red gram from the rice.
☆Separating husks from the wheat.
Hope this will help u
Hand picking:
If the ore particles and the impurities are different in one of the properties like colour,size,etc. using that property, the ore particles are hsndpicked separating them from other impurities.
Daily life examples for hand picking:
1) Separating mud particles from rice is an example for hand picking because the colour and size of these are different.
2) Similarly,the ore particles and the impurities are different in one of the properties like colour,size,etc separated by hand picking.
Washing:
We use washing method with water to separate dust from rice,dal and vegetable,fruits, etc.
Ore particles are crushed and kept on a slopy surface. They are washed with controlled flow of water. Less densive impurities are carried away by water flow, leaving the more densive particles behind.
Daily life examples for Washing:
1) We can clean some vegetables like potatoes by controlled flow of water.
2) Similarly, ores are washed with controlled flow of water.