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प्रश्न
The smallest unit of matter that exists freely in nature is called ...........
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उत्तर
The smallest unit of matter that exists freely in nature is called molecule.
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संबंधित प्रश्न
Liquids have definite shape and definite volume.
Which of the following materials fall in the category of a “pure substance”?
- Ice
- Milk
- Iron
- Hydrochloric Acid
- Calcium oxide
- Mercury
- Brick
- Wood
- Air
An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.
Fill in the following blanks with suitable words :
An element is made up of only one kind of ........
What are the two types of pure substances? Give one example of each type.
State two physical properties on the basis of which metals can be distinguished from non-metals.
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
Define solvent.
The best way to recover sugar from an aqueous sugar solution is :
Intermolecular space is maximum in ______.
