Classification Of Substances Questions and Answers

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The solubility of Potassium Manganate (VII) at 20ºC is 13g per 100g of water and at 90ºC is 60g per 100g of water.

asked Aug 17, 2021 in Chemistry Form 1 by anonymous

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Hydrated Copper (II) Sulphate is heated in a boiling tube as shown.

asked Aug 6, 2021 in Chemistry Form 1 by anonymous

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Give an industrial application of sublimation

asked Aug 5, 2021 in Chemistry Form 1 by anonymous

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Fractional distillation of liquid air is usually used to separate various gaseous mixtures in air. Explain how to

asked Jul 27, 2021 in Chemistry Form 1 by anony mous

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The diagram below shows the relationship between the physical states of matter.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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The curves below represent the variation of temperature with time when pure and impure samples of a solid were heated separately.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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Give two applications of chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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What is paper chromatography?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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Name the process which take place when Iodine changes directly from solid to gas

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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State one application of fractional distillation.

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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What role do the following parts play during fractional distillation of water and ethanol?

asked Jul 27, 2021 in Chemistry Form 1 by anonymous

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A mixture of two liquids A and B with densities of 2.34g/cm3 and 1.30g/cm3 respectively is to be separated .

asked Jul 5, 2021 in Chemistry Form 1 by anonymous

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