Arrange the halogens F2, Cl2, Br2, I2, in order of their increasing reactivity with alkanes.
(i) I2< Br2< Cl2< F2
(ii) Br2< Cl2< F2< I2
(iii) F2< Cl2< Br2< I2
(iv) Br2< I2 < Cl2< F2
Arrange the halogens F2, Cl2, Br2, I2, in order of their increasing reactivity with alkanes.
(i) I2< Br2< Cl2< F2
(ii) Br2< Cl2< F2< I2
(iii) F2< Cl2< Br2< I2
(iv) Br2< I2 < Cl2< F2
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1 Answer
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This is a multiple choice answer as classified in NCERT Exemplar
(i) I2< Br2< Cl2< F2
The reactivity of halogens with alkanes depends on the electronegativity i.e. higher the electronegativity higher would be the reaction. As down the group reactivity decrease so thus its reactivity.
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