(iv) A gas used for sterilization of drinking water is ________
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Solution
Chlorine is a strong oxidizing disintfectant.
Chlorine is used for sterilization of drinking water as chlorine helps in killing toxic pathogens like bacteria, fungi, and viruses by breaking the chemical bonds formed between these molecules.
Thus, chlorination helps in the reduction of diarrheal diseases.
Therefore, A gas used for sterilization of drinking water is chlorine