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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Sulphur and carbon are
पर्याय
metals
non-metals
metalloids
noble gases
उत्तर
non-metals
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संबंधित प्रश्न
Name: the Hardest Naturally Occurring Substance
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Define a pure substance. How many types of pure substances do you know?
Give two examples of Noble gases.
What is meant by 2H and H2
Give one use of the following substance:
Brass
Tick (√) the correct alternative from the choice given for the following statement.
All pure substances have
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
Name the element which is used for making computer chips.
