Q. In vacuum distillation, substance boils at

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Q. Chromatography is especially useful for

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Q. Elevation of boiling points occur due to

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Q. Range of −5 oC to −25 oC is of

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Q. Distillate is a liquid that

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Q. Presence of impurities in ethanol (C₂H₅OH) will cause

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Q. A purple stain is obtained if ninhydrin spray is used to locate

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Q. In order to lower melting point of ice,

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Q. In fractionating column of fractional distillation, higher in column

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Q. After centrifugation when sublimate settles, clear liquid

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Q. Pure stearic acid melts at exactly

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Q. In order to separate colors, dyes and amino acids, useful method will be

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Q. Addition of salt in water will

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Q. Impurities,

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Q. In Liebig condenser,

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Q. A dissolved solid can be separated from solution through

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Q. If a substance decomposes when heated to its boiling point, suitable method is

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Q. A range of boiling point indicates,

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Q. Pure ice melts at exactly

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Q. Liquid-liquid immiscible mixtures can be separated through

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