Which among the following are the ores of aluminium ?
(i) Bauxite (ii) Cryolite
(iii) Corundum .

Which of the following is not a mineral of aluminium ?

Which among the following is/are solid aerosol? (i) Dust (ii) Fog (iii) Aerosol spray (iv) Air

Which of the following discases are treated by antibiotics ? (i) Plague (ii) Diphtheria (iii) Leprosy (iv) Whooping cough

Among the following pairs , pick out the smallest . (i) Mg, Ca (ii) Al, Si (iii) Cl, Br .

Which of the following are the fishery by-products? (i) Oil , (ii) Manure (iii) Glue , (iv) Isinglass (v) Shagreen , (vi) Leather

Which of the following are AV valves? (i) Bicuspid valve (ii) Tricuspid valve (iii) Semilunar valve (iv) Aortic valve