Impure water is an insulator.
Hence, the statement is false.
Silicon doped with electron-rich impurity forms .................
(a) P-type semiconductor (b) n-type semiconductor
(c) intrinsic semiconductor (d) insulator
Name a ‘pure’ and an ‘impure’ form of water in its natural state.
Chromatography is used to obtain the components of an impure solution of copper (II) sulphate in water.