The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :

Hydrogen peroxide reacts with iodine in basic medium to give :

In the following sequence of reactions,


The compounds B and C respectively are :-

Given below are two statements :

Statement I : The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.

Statement II : The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.

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