Explain the mechanism of ozonolysis of alkenes.

The major product of the following reaction is:

The major product in the following conversion is

Compound P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is ${\mathrm{C}}_8{\mathrm{H}}_8\mathrm{O}$ . Q undergoes Cannizzaro reaction but not haloform reaction, whereas S undergoes haloform reaction but not Cannizzaro reaction.

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The major product of the following reaction is:

What is the major product expected from the following reaction?



Where D is an isotope of hydrogen.

Consider the following transformations of a compound $\mathrm{P}$.

Choose the correct option(s).

The correct statement(s) for the following addition reactions is(are)