(i) melting of iron metal (ii) Rusting of iron (iii) Bending of an iron rod (iv) Drawing a wire of iron metal

A mixture of sulphur and carbon disulphide is a heterogeneous colloid and shows the Tyndall effect. The particles in a colloidal solution are so large that they can scatter light. This phenomenon of scattering of light by colloidal particles is ...

Cellulose, it is a complex substance and provides structural strength to all plants. Plant cell wall is mainly made of cellulose. The cell wall of bacteria is made up of “PEPTIDOGLYCAN”.

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