Which of the following is true for the given | vedclass

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(C) The given reaction is a free radical halogenation of alkanes. $1$. The reactivity order of halogens is $F_2 > Cl_2 > Br_2 > I_2$. Thus,option $A$

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Iodination is carried out in the presence of $HIO_3$ to increase the yield of alkyl iodide

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(C) The given reaction is a free radical halogenation of alkanes. $1$. The reactivity order of halogens is $F_2 > Cl_2 > Br_2 > I_2$. Thus,option $A$ is incorrect. $2$. The reaction proceeds via a free radical substitution mechanism,not electrophilic substitution. Thus,option $B$ is incorrect. $3$. Iodination is a reversible reaction $(R-H + I_2 \rightleftharpoons R-I + H-I)$. The $H-I$ formed is a strong reducing agent and reduces $R-I$ back to $R-H$. To shift the equilibrium forward,an oxidizing agent like $HIO_3$ or $HNO_3$ is used to consume $H-I$ $(5H-I + HIO_3 \rightarrow 3I_2 + 3H_2O)$. Thus,option $C$ is correct.

Which of the following is true for the given reaction $R-H + X_2 \xrightarrow{hv} R-X + H-X$?

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