Which of the following is fast de-brominated ?

Which of the following is a fast change

Which of following is fast reaction?

Which of the following state of bromine will have standard heat formation to be equal to zero? Liquid bromine, solid bromine, gaseous bromine molecules.

Which of the following state of bromine will have standard heat of formation to be equal to zero liquid bromine,solid bromine,gaseous bromine molecules.

In which of the following pairs the bromination of first member is easier than the second member ?

In the given figure, DE||BC . Which of the following is true?

Which one of the following fast reaction ?

Which of the following is a very fast reaction ?

Which of the following can decolourise bromine water solution?