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JEE Main 2023 (Online) 25th January Evening Shift

MCQ+4 / -12023

A. Ammonium salts produce haze in atmosphere.


B. Ozone gets produced when atmospheric oxygen reacts with chlorine radicals.


C. Polychlorinated biphenyls act as cleansing solvents.


D. 'Blue baby' syndrome occurs due to the presence of excess of sulphate ions in water.


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