The major product formed in the following reaction

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P and Q are isomers of cyclopentadiene dimer. A representative energy profile diagram of the dimerization is given below. The correct statement about the reaction under ambient conditions is

The major product formed in the following reaction is

The major product formed in the following reaction sequence is

The correct order of reactivity of the following olefins towards ozone is

For the given reaction, isotopic substitution (H to D) at the indicated position of A will lead to the observation of

Cyclization of the following dipeptide under mildly basic conditions gives

The major product formed in the following reaction sequence is

The major product formed in the following reaction sequence is

The sequence through which the following reaction proceeds is

The major product formed in the following reaction is