An alkali metal A gives a compound B on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A,B and C and give the reactions involved.

An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with watr gives back B. identify A, B and C and give the reacitons involved.

An orange solid A on heating gives a colourless gas B. The gas B in dry conditions is Passed Over heated Ca to give a solid C. The solid C further reacts with water to Produce gas D which forms a blue coloured compound E on reaction with copper sulphate solution. Identify A, B,C,D,E and give the sequence of reactions involved .

An element reacts with oxygen to give a compound with a high melting point.This compound is also solutble in water.the element is likely to be:

What are interhalogen compounds ? Give example.

Aniline is treated with bromine water to give an organic compound ‘X’ which when treated with NaNO_2 and HCl at 0^@C gives a water soluble compound ‘Y’. Compound ‘Y’ on treatment with Cu_2Cl_2 and HCl gives compound ‘Z’. Compound ‘Z’ is F

In one of the industrial processes used for manufacture of sodium hydroxide, a gas ‘X’ is formed as a by-product. The gas ‘X’ reacts with lime water to give a compound ‘Y’ which is used as a bleaching agent in the chemical industry. Identify ‘X’ and ‘Y’ giving the chemical equations of the reactions involved.

XeF_4 reacts with water at -80^@C to give