Match the items of Columns I and II and mark the correct option.

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1. H2SO4 is used in lead storage batteries


2. CCl3NO2 is known as tear gas


3. Cl2 have highest electron gain enthalpy because it need only one electron to compete octect. thus to attain stable configuration .


4. Oxygen family is known as chalcogen therefore sulphur is also chalcogen

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