• question_answer
                    A one litre flask is full of brown bromine vapour. The intensity of brown colour of vapour will not decrease appreciably on adding to the flask some:                                                                                             

    A)                 pieces of marble             

    B)                                                            animal charcoal powder

    C)                 carbon tetrachloride                                                      

    D)                 carbon disulphide

    Correct Answer: A

    Solution :

                    Bromine is soluble in \[CC{{l}_{4}}\] and \[C{{S}_{2}}\]. Animal charcoal also adsorbs on bromine water. But marble has no action with \[B{{r}_{2}}\]. So, after adding \[(CaC{{O}_{3}})\] marble piece to the flask, there will be no decreament in the intensity of brown colour.

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