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The number of correct trends in halogen ...

The number of correct trends in halogen gas, among the following will be:
`i. F_(2) < Cl_(2) < Br_(2) < I_(2)` (covalent radius)
ii. `F_(2) < Cl_(2) > Br_(2) > I_(2)` (Bond dissociation enthalpy)\text
iii. `F_(2) > Cl_(2) > Br_(2) > I_(2)` (reduction potential values)
iv. `F_(2) < Cl_(2) < Br_(2) < I_(2)` (density)

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The correct Answer is:
4
All of the given trends are correct.
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