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The law of triad is applicable to : Chlo...

The law of triad is applicable to : Chlorine, bromine and iodine Hydrogen, oxygen and nitrogen Sodium, neon and calcium All of the above

A

Chlorine, bromine and iodine

B

Hydrogen, oxygen and nitrogen

C

Sodium, neon and calcium

D

All of the above

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Chlorine, Bromine and Iodine form a Dobereiner’s triad. The atomic masses of Chlorine and iodine are 35.5 and 126.9 respectively. Predict the atomic mass of Bromine.

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Halogenation is a substitution reaction, where halogen replaces one or more hydrogens of hydrocarbon. Chlorine free radical make 1^(@), 2^(@), 3^(@) radicals with almost equal ease, whereas bromine free radicals have a clear preference for the formation of tertiary free radicals. So, bromine is less reactive, and more slective whereas chlorine is less selective and more reactive. The relative rate of abstraction of hydrogen by Br is {:(3^(@),gt,2^(@),gt,1^(@)),((1600),,(82),,(1)):} The relative rate of abstraction of hydrogen by Cl is {:(3^(@),gt,2^(@),gt,1^(@)),((5),,(3.8),,(1)):} CH_(3) - overset(CH_(3))overset(|)(CH) - CH_(3) overset(Cl_(2)//hv)(rarr) Product Major product in the above reaction is :

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