Which of the following reactions will not result in the formation of carbon- carbon bond?

Which among the following reactions will not result in the formation of carbon - carbon bond? _______.

Which one of the following reactions will not result in the formation of carbon - carbon bond?

Which of the following reactions will not result in the formation of C - C bond ?

Which of the following reactions does not result in the formation of new C-C bond?

In which of the following reactions either the cleavage or formation of a carbon-carbon bond does not take place?

Which of the following orbital overlaps is involved in the formation of the carbon-carbon signle bond in the molecule HC -= C - CH = CH_(2) ?

Which of the following reactions of bezene proves the presence of three carbon - carbon double bonds in it: