This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'All are true regarding bleaching powder, except ? \nSelect and explain. \nA. Contains about 33% of available chlorine, B. It is a stable compound, C. White amorphous compound, D. Strong bleaching agent', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., It is a stable compound Bleaching powder :? Bleaching powder is also known as chlorinated lime. o It is a disinfectant mainly used for disinfecting o Water Faeces o It kills most of the organism when used in strength of 1 to 3% o The chief drawback of bleaching powder is that it is an unstable compound and loses its chlorine content on storage. o Its action is rapid and brief. o A good sample of bleaching powder contains 33% of"available chlorine". It is a white amorphous powder with a pungen smell of chlorine. When mixed with excess of lime it retains its strength, this is called stabilized bleach. Bleaching powder should he stored in a cool dry place.', 'role': 'assistant'}]