Why the boiling point of solution is higher than pure liquid ?
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Suggest a method to purify a liquid which decomposes at its boiling point?
The process Distillation Under reduced pressure is used to purify a liquid which decomposes at its boiling point.
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Explain, why an organic liquid vaporises at a temperature below its boiling point in its steam distillation?
In steam distillation, the organic liquid starts to boil when the sum of vapour pressure due to the organic liquid (p1) and the vapour pressure due to water (p2) becomes...
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Why does the temperature of a substance remain constant during its melting point or boiling point?
The temperature of a substance remains constant at its melting and boiling points untill all the substance melts or boils because, the heat supplied is continuously used up in changing...
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The boiling point of PH3 is lesser than NH3. Why ?
[Hint : NH3 molecules are stabilized by intermolecular H-bonding, while PH3 by weak van der Waalss forces.]
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Give reasons : (i) Boiling point of alkyl bromide is higher than alkyl chloride.
[Hint : (i) High magnitude of van der Waals forces in alkyl bromides.
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Higher working capital usually results in (a) higher current ratio, higher risk and higher profits
(a) Working capital of a firm refers to the amount of current assets which are in excess over current liabilities. If a company has a higher working capital then there will...
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Now can you tell why Salima saw changes in the natural vegetation as she climbed higher and higher?
Salima saw changes in the natural vegetation as she climbed higher and higher due to change in altitude, and related climatic conditions such as temperature, precipitation, low air density along...
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Explain the following observations: (i) The boiling point of ethanol is higher than that of methoxymethane.
(i) Ethanol undergoes intermolecular hydrogen bonding due to the presence of a hydrogen attached to oxygen atom. As a result, ethanol exist as associated molecules and hence it has higher...
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A solid is completely immersed in a liquid. The force exerted by the liquid on the solid will (a) increase if it is pushed deeper inside the liquid
(c) decrease if it is taken partially out of the liquid (d) be in the vertically upward direction. EXPLANATION: The force exerted by the liquid on the solid is equal to the volume...
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Although the H-bonding in hydrogen fluoride is much stronger than that in water, yet water has a much higher boiling point than hydrogen fluoride.
This is because hydrogen bonding is multidimensional in water whereas in HF it is linear.
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