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प्रश्न
Fill in the blank
A pure substance has definite _______ and constant _________.
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उत्तर
A pure substance has definite composition and constant properties.
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संबंधित प्रश्न
Name the main metal present in the following:
Chlorophyll
State four difference between compounds and mixtures.
Define:- Filtration
Fill in the blank:
________ and _______ are pure substances.
Give one word answer
The process of transferring the clean liquid after the solid settles at the bottom of the container
Fill in the blank
Use of a __________ to separate the components of a mixture of solids is based on the difference in the size of the components.
Match the columns.
| Column A | Column B |
| 1. To separate grain from chaff | a. filtration |
| 2. To seperat sawdust from water | b. sedimentation and decantation |
| 3. To separate iodine from sodium chloried | c. winnowing |
| 4. To separate iron fillings from sand | d. sublimation |
| 5.It is used to separate sand and water | e.magnetic separation |
| f. handpiicking |
How can you separate iron metal from non-magnetic impurities ?
Water is a ______.
When two or more elements combine together they form ______.
