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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
विकल्प
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
Choose the most appropriate answer
A solvent of Iodine is
Differentiate between the following.
Filter Paper and Alum
What are the different types of mixtures ?
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Why is it necessary to separate the constituents of a mixture.
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
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
