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प्रश्न
Indicate whether the following statement is true or false:
Elements are made up of compounds
विकल्प
True
False
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उत्तर
False
Correct Statement: Elements are made up of atoms.
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Correct the following statement:
CO and Co both represents cobalt.
Define a pure substance. How many types of pure substances do you know?
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Give the name of the radical - OH
Select the correct answer from the choice given below.
The negatively charged particles in an atom
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Define the terms elements, compounds & mixtures with a view to show their basic difference.
Elements are the______ form of pure substances.
