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The advantage of paper chromatography is:

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Important Questions on Is Matter Around Us Pure?

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9th CBSE
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 14

Which is the incorrect statement regarding applications of paper chromatography?

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9th CBSE
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 15

The process of fractional distillation is based on the difference of constituents in their:

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9th CBSE
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 16

A mixture of acetone (b.p. 56.5 °C) and ethyl alcohol (b.p. 78 °C) is fractionally distilled at 58 °C. The constituent which will form the distillate is:

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9th CBSE
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 17
The fractionating column used during fractional distillation helps in condensing the:
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9th CBSE
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 18
During the fractional distillation of air at -195 °C:
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 19
The process by which a pure soluble substance separates out in the form of a solid, when its hot saturated solution is allowed to cool is called:
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 20
In the city water supply the sequence of physical steps followed are:
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Core science chemistry>Chapter 2 - Is Matter Around Us Pure?>EXERCISE 2B>Q 21
The technique followed in obtaining pure copper sulphate crystals from impure copper sulphate crystals is: