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Question
Give one use of the following substance:
Coal
Solution
Coal: Coal is used as fuel also used in thermal power plants to produce electricity.
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RELATED QUESTIONS
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
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Select the correct answer from the choice given below.
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Higher-Order Thinking questions:
Why is hydrogen considered an element?
