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NO
N2O
NO2
NH3
Which among the given is used for refrigeration
Which among the given is used in dating archaeological findings
Which among the given is used in making smoke bombs
Which among the given is used in welding broken pieces of iron rails machine parts -
Which among the given is used to denature ethanol
Which among the given is used to increase the anti-knocking property of petrol
Which among the given is used to iodise common salf -
Which among the given is used to make light weight, but strong plastic -
Which among the given is used to remove ink rust stains on cloth -
Which among the given is used to remove rust stains on cloth