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Introduction

In a test tub...

Question

In a test tube, a cotton plug was placed and a few drops of bromine liquid were added to it and then a piece of wood charcoal was added to the test tube. Which of the following are observed?

A

Initially the test tube is filled with brown vapours

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B

Activated wood charcoal absorbs gases

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C

Brown vapours are retained in the test tube

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D

Brown vapours are formed because of wood charcoal

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Solution

The correct options are
A Activated wood charcoal absorbs gases
B Initially the test tube is filled with brown vapours
Initially, the test tube filled with brown fumes of bromine. They are absorbed by activated wood charcoal which is a good adsorbent and the test tube becomes transparent.

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