Question

Fill in the blanks:
(a) Water containing dissolved air is a ________mixture.
(b) Boric acid is used as _____ in cosmetics.
(c) Anything that occupies_____ and has_____is matter
(d) Mendeleev ______ the elements
(e) Ammonium chloride can be _________
(f) Synthetic fibres are __________ than natural fibres.​

Answer 1

Answer:

Solution

a) Sodium chloride from its solution in water Evaporation.

(b) Ammonium chloride from a mixture containing sodium chloride and ammonium chloride Sublimation.

(c) Small pieces of metal in the engine oil of a car Filtration

(d) Different pigments from an extract of flower Chromatography.

(e) Butter from curd Centrifugation.

(f) Oil from water Using separating funnel

(g) Tea leaves from tea Filtration

(h) Iron pins from sand Magnetic Separation

(i) Wheat grains from husk Winnowing

(j) Fine mud particles suspended in water Centrifugation.

Explanation:

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