A main group element, A, reacts with hot concentrated sodium hydroxide solution to give two products, B and C, containing 33.31 and 60.66% A respectively. B (0.0958g) was reduced quantitatively to C(0.0526g) by treatment with an excess ( 40cm3 of 0.200moldm3) of ferrous sulphate solution; the excess ferrous salt decolourised 14.44cm3 of 0.036moldm3 acidified KMnO4 solution. Identify A,B and C and write balanced equations for all reactions