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प्रश्न
Fill in the blank:
________ and _______ are pure substances.
उत्तर
Elements and compounds are pure substances.
APPEARS IN
संबंधित प्रश्न
Name the main metal present in the following :
Haemoglobin
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
By using a separating funnel
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
A pure substance has definite _______ and constant _________.
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.
Write true or false
All pure substances have characteristic melting and boiling points.
Name the substance you will add to speed up sedimentation.
What is centrifugation ? Also write the principle on which it works.
Loading is basically speeding up _____.
When two or more elements combine together they form ______.
