On reaction with `Cl_2` phosphorus forms two types of halides ‘A’ and B’. Halide A is yellowish-white powder but halide ‘B’ is colourless Oily liquid. Identify A and B and write the formulas of their hydrolysis products.

Identify the compound of calcium which is yellowish white powder and is used for disinfecting drinking water. Write its chemical name and formula. How is it manufactured? Write the chemical equation for the reaction involved. Also list two other uses of the compound.

An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous a solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A,B,C or D. Also write down the equations for the reaction involved.

The reactions of Cl_2 gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two (different) oxoacids of chlorine, P and Q, respectively. The Cl_2 gas reacts with SO_2 gas, in the presence of charcoal, to give a product R. R reacts with white phosphorus to give a compound S. On hydrolysis, S gives an oxoacid of phosphorus, T. Answer the following (11-12) questions: R, S and T, respectively, are

An optically inactive compound (A) having molecular formula C_4H_11N on treatment with HNO_2 gave an alcohol (B). (B) on heating at 440 K gave an alkene (C). (C) on treatment with HBr gave an optically active compound (D)having the molecular formula C_4H_9Br . Identify A, B, C and D and write down their structural formulae. Also write equations 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 .

A soft drinks manufacturing company is preparing a production plan on two types A and B of soft drinks. There is sufficinet materail available to make 20000 bottles of drink A and 40000 bottles of drink B but there are only 45000 empty bottles into either hte drinks can be filled. Further, it takes 3 hours to fill 1000 bottles of drink A and one hour to fill 1000 bottles of drink B. there are only 66 hours available for filling. The profit is Rs.2 per bottle for drink A and Rs.1 per bottle of drink B. Set up this problem as a linear programming problem and find graphically the production scheduled in order to maximize the profit.

Identify the compound X on the basis of the reactions given below: Also, write the name and chemical formulae of A,B and C.

A translucent white waxy solid (A) on heating in an inert atmosphere is converted to its allotropic form (B). Allotrope (A) on reaction with very dilute aqueous KOH liberates a highly poisonous gas (C) having rotten fish smell. With excess of chlorine forms (D) which hydrolyses to compound (E). Identify compounds (A) to (E).