The incorrect statement regarding the reaction given below is

For lead storage battery pick the correct statements

A. During charging of battery, $$\mathrm{PbSO}_{4}$$ on anode is converted into $$\mathrm{PbO}_{2}$$

B. During charging of battery, $$\mathrm{PbSO}_{4}$$ on cathode is converted into $$\mathrm{PbO}_{2}$$

C. Lead storage battery consists of grid of lead packed with $$\mathrm{PbO}_{2}$$ as anode

D. Lead storage battery has $$\sim 38 \%$$ solution of sulphuric acid as an electrolyte

Choose the correct answer from the options given below:

Given below are two statements :

Statement I : $$\mathrm{SbCl}_{5}$$ is more covalent than $$\mathrm{SbCl}_{3}$$

Statement II: The higher oxides of halogens also tend to be more stable than the lower ones.

In the light of the above statements, choose the most appropriate answer from the options given below :

In the following reaction

'A' is