Write the structures of A, B, C, D and E in the following reactions :

A. Account for the following:

(i) Ozone is thermodynamically unstable.

(ii) Solid is ionic in nature.

(iii) Fluorine forms only one oxoacid HoF.

B. Draw the structure of

(i)

(ii)

(i) Compare the oxidizing action of and by considering parameters such as bond dissociation enthalpy, electron gain enthalpy and hydration enthalpy.

(ii) Write the conditions to maximize the yield of by contact process.

(iii) Arrange the following in the increasing order of property mentioned:

A. (Reducing character)

B. (Base strength)

A. Write the chemical equation for the reaction involved in Cannizzaro reaction.

B. Draw the structure of the semi carbazone of ethanol.

C. Why pKa of is lower than that

D. Write the product in the following reaction:

E. How can you distinguish between propanal and propanone?

A. Calculate the freezing point of solution when 1.9 g of was dissolved in 50 g of water, assuming undergoes complete ionization.

B. (i) Out of 1 M glucose and 2 M glucose, which one has a higher boiling point and why?

(ii) What happens when the external pressure applied becomes more than the osmotic pressure of solution?