Arrange the halogens `F_(2),Cl_(2),Br_(2),I_(2)`, in order of their increasing reactivity with alkanes.A. `I_(2) lt Br_(2) lt Cl_(2) lt F_(2)`B. `Br_(2) lt Cl_(2) lt F_(2) lt I_(2)`C. `F_(2) lt Cl_(2) lt Br_(2) lt I_(2)`D. `Br_(2) lt I_(2) lt Cl_(2) lt F_(2)`

Arrange the halogens `F_(2),Cl_(2),Br_(2),I_(2)`, in order of their in

1.	Arrange the halogens `F_(2),Cl_(2),Br_(2),I_(2)`, in order of their increasing reactivity with alkanes.A. `I_(2) lt Br_(2) lt Cl_(2) lt F_(2)`B. `Br_(2) lt Cl_(2) lt F_(2) lt I_(2)`C. `F_(2) lt Cl_(2) lt Br_(2) lt I_(2)`D. `Br_(2) lt I_(2) lt Cl_(2) lt F_(2)`
Answer» Correct Answer - A Rate of reaction of alkanes with halogens is `F_(2) gt Cl_(2) gt Br_(2) gt I_(2)`. Reactivity decreases down the group as the electronegativity of the halogen decreases down the group.

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Arrange the halogens `F_(2),Cl_(2),Br_(2),I_(2)`, in order of their increasing reactivity with alkanes.A. `I_(2) lt Br_(2) lt Cl_(2) lt F_(2)`B. `Br_(2) lt Cl_(2) lt F_(2) lt I_(2)`C. `F_(2) lt Cl_(2) lt Br_(2) lt I_(2)`D. `Br_(2) lt I_(2) lt Cl_(2) lt F_(2)`

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