pBlock ElementsII 2 Question 48
51. Explain the following in not more than two sentences.
Bleaching powder loses its bleaching properties when it is kept in an open bottle for a long time.
(1980, 2M)
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Solution:
- The bleaching action of bleaching powder is due to presence of available chlorine, but in contact of moisture, it releases chlorine decreasing the amount of available chlorine. Hence, bleaching property decreases gradually as bleaching powder is kept in open container for long time.
