Which of the following gives the highest yiel | vedclass

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(A) The reaction of alkyl halides with $C_2H_5ONa/C_2H_5OH$ proceeds via an $E2$ elimination mechanism.For $2$-halopentanes,the elimination can occur

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$2$-iodopentane

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(A) The reaction of alkyl halides with $C_2H_5ONa/C_2H_5OH$ proceeds via an $E2$ elimination mechanism.For $2$-halopentanes,the elimination can occur at $C_1$ or $C_3$ to form $1$-pentene or $2$-pentene,respectively.According to Zaitsev's rule,the more substituted alkene ($2$-pentene) is the major product.Among the halogens,iodine is a better leaving group than bromine.Therefore,$2$-iodopentane $(CH_3CH(I)CH_2CH_2CH_3)$ undergoes faster elimination and provides a higher yield of the more stable $2$-pentene compared to $2$-bromopentane.

Which of the following gives the highest yield of $2$-pentene upon reaction with $C_2H_5ONa/C_2H_5OH$?

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