In the following reaction, which of the folliwing steps is wrong?

In the following reaction, which of the following steps is wrong?

In the following reaction, which of the following steps is wrong ?

In the following reaction, which of the following steps is wrong ?

In the followingreaction, which of the following steps is wrong?

Which of the following reactions are wrong ?

Wrong reaction of the following

Which of the following reaction are wrong?

The reaction (C ) to (F and G) is called mercuration-demercuration reaction. Which of the following statements is wrong about the reaction.