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प्रश्न
Write true or false
All pure substances have characteristic melting and boiling points.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Name the main metal present in the following:
Haemoglobin
Name the main metal present in the following:
Chlorophyll
State four difference between compounds and mixtures.
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
Sedimentation and decantation
Fill in the blank
_______ are made up of same kind of atoms.
Fill in the blank
A pure substance has definite _______ and constant _________.
Loading is basically speeding up _____.
Write the differences between elements and compounds and give an example for each.
Water is a ______.
Write the differences between mixture and compounds.
