Advertisements
Advertisements
प्रश्न
Name two methods by which solid-solid mixtures can be separated.
उत्तर
- Winnowing
- Hand Picking
APPEARS IN
संबंधित प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Solvent extraction method
Differentiate between the following
Filter Paper and Alum
Is food that we eat a mixture ?
Filtration is a method used to separate fine particles of solid from a liquid.
A separating funnel can be used for separating a mixture of immiscible liquids. True or false?
During centrifugation, solid particles of the mixture move towards the bottom. True or false?
When we mix a drop of ink in water we get a ______.
State whether true or false. If false, correct the statement.
Buttermilk is an example of heterogeneous mixture.
Four mixtures are given below.
- Kidney beans and chickpeas
- Pulses and rice
- Rice flakes and corn
- Potato wafers and biscuits
Which of these can be separated by the method of winnowing?
Read the story titled “WISE FARMER” and tick the correct option to complete the story.
A farmer was sad/happy to see his healthy wheat crop ready for harvest. He harvested the crops and left it under the sun/rain to dry the stalks. To separate the seeds from the bundles of the stalk he hand picked/threshed them. After gathering the seed grains he wanted to separate the stones and husk from it. His wife winnowed/threshed them to separate the husk and later sieved/hand picked to remove stones from it. She ground the wheat grains and sieved/filtered the flour. The wise farmer and his wife got a good price for the flour. Can you tell why?
