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प्रश्न
Name a metal which has no fixed shape.
उत्तर
Mercury has no fixed shape.
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संबंधित प्रश्न
What are molecules ?
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.
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There is a large group of materials P which can be divided into three groups Q, R and S on the basis of their properties. The substances belonging to group Q can be solids, liquids or gases. The solids belonging to group Q are usually electrical insulators. Most of the substances of group R are solids which are good conductors of electricity. The substances belonging to group S are neither insulators like Q nor good conductors like R. The properties of S are intermediate between those of Q and R.
- What could the group of materials P be ?
- Name the substances Q. Give two examples of such substances.
- Name the substances R. Write two examples of such substances.
- Name the substances S. Give two examples of such substances.
- Out of Q, R and S, which substances are malleable and ductile ?
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What's the solution?
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Define the term matter.
