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प्रश्न
Give reasons for the following:
Water on freezing turns into ice.
उत्तर
Every pure substance has a fired melting point or boiling point.
संबंधित प्रश्न
Water cycle is an example of inter conversion of states of water. Explain.
How will you prove by an experiment that solids occupy space ?
Give two examples of the following:
Substances which do not change their states.
If an object is taken to the moon from the earth what will be its mass ?
Define the following term of Molecule .
Give reason of Liquids have definite volume but no difinite shape.
Fill in the blank
Molecules in a ________ are packed very closely.
Complete the statement given below by selecting the correct word.
The space between atoms in gases is maximum while in ____ is minimum,
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to density.
200 ml of water is poured into a bowl of 400 ml capacity. The volume of water will be ______.
