All are true regarding bleaching powder, except –

Bleaching powder : - Bleaching powder is also known as chlorinated lime. It is a disinfectant mainly used for disinfecting Water Faeces Urine It kills most of the organism when used in strength of 1 to 3% The chief drawback of bleaching powder is that it is an unstable compound and loses its chlorine content on storage. Its action is rapid and brief 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 be stored in a cool dry place.