(i) martynia are dispersed by animals. (ii) The maize grain consists of a yellowish patch on one side of the grain that makes the embryo. (iii) Fats and oils are obtained from a large variety of seeds.

Alum (ii) CaO Cl2.2 H2O (c) Ammonium iron (II) sulphate (iii) show allotropy (d) Aqua-regia (iv) reaction between any acid and a base (e) Sulphur (v) dissociation constant of the indicator (f) Bleaching

(f) Catalysts are not consumed by the chemical reactions. (g) The reaction between joule and calorie is `1J=4.18 cal. Fill in the blanks with the correct word(s) ,terms. (7 marks) (a) Sodium hydroxide

characteristic ………. smell. (d) Hydrogen sulphide has weak ………. properties. (e) Halogens have essential electronic structure of ………. . (f) In the reaction with ammonia, boron trifluoride behave as an ……….