Which of the following statements is invalid?

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(C) Statement $A$ is correct because carbocation stability lowers the activation energy of the rate-determining step.Statement $B$ is correct as a pri

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Isopropyl chloride reacts with sodium ethoxide to form $1-$ethoxypropane.

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(C) Statement $A$ is correct because carbocation stability lowers the activation energy of the rate-determining step.Statement $B$ is correct as a primary carbocation rearranges to a more stable secondary carbocation via a $1,2-$hydride shift.Statement $C$ is invalid. Isopropyl chloride $(CH_3CHClCH_3)$ reacting with sodium ethoxide $(NaOCH_2CH_3)$ primarily undergoes an $E2$ elimination reaction to form propene,not $1-$ethoxypropane. Even if substitution occurs,it would form $2-$ethoxypropane,not $1-$ethoxypropane.Statement $D$ is correct as propyl halides $(CH_3CH_2CH_2X)$ react with sodium ethoxide via an $S_N2$ mechanism to form $1-$ethoxypropane $(CH_3CH_2CH_2OCH_2CH_3)$.

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