What is the kinetic product obtained from the following reaction

Which set of molecular orbitals depict the symmetry of the HOMO and the LUMO in a 2p + 2p cycloaddition?

How many molecular orbitals are produced from the overlap of four p atomic orbitals?

Which of the following statements about a p* antibonding molecular orbital is true?  

Choose the correct ranking of the following dienophiles in decreasing order of reactivity in the Dies-Alder reaction.

Rank the following compounds in order of increasing reactivity diene in a Diels-Alder reaction, least reactive first?  

Which of the following statements concerning electrocyclic reactions is (are) correct?

Describe a sigmatropic rearrangement.

The following reaction; undergoes a ________ ring closure to yield ________.

Which of the following represents the highest occupied molecular orbital for the conjugated pi system in excited state Vitamin D3?