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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
पर्याय
carbon and hydrogen
hydrogen and oxygen
carbon, hydrogen and oxygen
hydrogen, carbon and sulphur
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उत्तर
carbon, hydrogen and oxygen
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संबंधित प्रश्न
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Write the names of elements from the following symbol:
Br
Write the names of elements from the following symbol:
Si
Write the names of elements from the following symbol:
Pt
Explain the difference between Metals and non-metals.
Define the terms elements, compounds & mixtures with a view to show their basic difference.
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
