Question : Which of the following substances is used as a substitute for chlorine in bleaching?
Option 1: Ethanal
Option 2: Liquid carbon dioxide
Option 3: Hydrogen peroxide
Option 4: Tetrachloroethene
Correct Answer: Hydrogen peroxide
Solution : The correct answer is Hydrogen peroxide .
Hydrogen peroxide is used as a substitute for chlorine in bleaching. Due to its oxidising property, it oxidises the thiol companies of enzymes and proteins inflicting metabolic inhibition on microbes.
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Question : Which of the following gases is used in a bulb?
Question : Which among the following gases is also known as ‘Laughing Gas’?
Question : Which gas is used by chemical leaveners, such as baking powder and baking soda, to lighten and aerate baked goods?
Question : At room temperature and atmospheric pressure, ______ has a density of 1.87 kg/m3, which is 1.5 times heavier than air and exists as a liquid below the critical temperature of 31°C.
Question : Ozone consists of which of the following?
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