7. Symbiosis
A demonstration of the "effect of substitution"

If $\mathrm{CH}_{3} \mathrm{Cl}$ and $\mathrm{CCl}_{3} \mathrm{H}$ are mixed $\mathrm{CH}_{4}$ and $\mathrm{CCl}_{4}$ will result. Why?

Question

7. Symbiosis
A demonstration of the "effect of substitution"

If $\mathrm{CH}_{3} \mathrm{Cl}$ and $\mathrm{CCl}_{3} \mathrm{H}$ are mixed $\mathrm{CH}_{4}$ and $\mathrm{CCl}_{4}$ will result. Why?

Accepted Answer

∻Solution∻ ‖ 1 ⋮ **Identify the reaction type**: The reaction described is a halogen exchange or a free radical substitution reaction. ‖ ‖ 2 ⋮ **Explain the mechanism**: The reaction likely proceeds via a radical chain mechanism, where chlorine radicals generated from either $\mathrm{CH}_{3}\mathrm{Cl}$ or $\mathrm{CCl}_{3}\mathrm{H}$ can abstract hydrogen from the other compound to form $\mathrm{CH}_{4}$ or $\mathrm{CCl}_{4}$ respectively. ‖ ‖ 3 ⋮ **Discuss the 'effect of substitution'**: The 'effect of substitution' refers to the reactivity of different hydrogen atoms in a molecule towards radical substitution. In $\mathrm{CH}_{3}\mathrm{Cl}$, the hydrogen atoms are less shielded by electron-withdrawing chlorine atoms, making them more reactive. In $\mathrm{CCl}_{3}\mathrm{H}$, the single hydrogen is more shielded and thus less reactive. ‖ ∻Answer∻ ⚹ When $\mathrm{CH}_{3}\mathrm{Cl}$ and $\mathrm{CCl}_{3}\mathrm{H}$ are mixed, a radical chain reaction can occur, leading to the formation of $\mathrm{CH}_{4}$ and $\mathrm{CCl}_{4}$ due to the abstraction of hydrogen atoms by chlorine radicals. ⚹ ∻Key Concept∻ ⚹ Radical chain mechanism ⚹ ∻Explanation∻ ⚹ The reaction between $\mathrm{CH}_{3}\mathrm{Cl}$ and $\mathrm{CCl}_{3}\mathrm{H}$ involves a radical chain mechanism where chlorine radicals abstract hydrogen atoms from the other molecule, leading to the formation of $\mathrm{CH}_{4}$ and $\mathrm{CCl}_{4}$. The 'effect of substitution' influences the reactivity of the hydrogen atoms in these molecules. ⚹◊What is the mechanism behind the formation of $CH_4$ and $CCl_4$ when $CH_3Cl$ and $CCl_3H$ are mixed?⍭ Generate me a similar question◊

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