Chemistry
Classify the following substances into compounds and mixtures:
Carbon dioxide, air, water, milk, common salt, blood, fruit juice, iron sulphide, brass.
Related Questions
Write true or false against the following statements .
(a) The elements present in a compound can be obtained by simple physical methods.
(b) The properties of components are retained in a mixture.
(c) Common salt is separated from sea water by evaporation.
(d) A mixture has a definite chemical formula.
Match the following columns.
Column A Column B (a) Solid + Liquid mixture (i) Krypton (b) Filtration (ii) Pure substance (c) Chromatography (iii) Salt and water (d) Compounds (iv) Residue (e) Inert gas (v) Components of ink Give one example for each of the following types of mixtures.
(a) solid-solid homogeneous mixture
(b) solid-liquid heterogeneous mixture
(c) miscible liquids
(d) liquid-gas homogeneous mixture
Define :
(a) A mixture
(b) Crystallisation
(c) Distillation