| स्तंभ-$I$ (अभिक्रिया) | स्तंभ-$II$ (क्रियाविधि) |
| $(A)$ $OH^- + CH_3Cl \to HOCH_3 + Cl^-$ | $(1)$ $S_N2$ क्रियाविधि |
| $(B)$ $(CH_3)_3CBr + OH^- \to (CH_3)_3COH + Br^-$ | $(2)$ $S_E2$ एरोमैटिक |
| $(C)$ $CH_3CH_2Br \xrightarrow[ethanol]{KOH} CH_2 = CH_2$ | $(3)$ $S_N1$ क्रियाविधि |
| $(D)$ $C_6H_6 + Br_2 \xrightarrow{Fe} C_6H_5Br + HBr$ | $(4)$ $\beta$-विलोपन (डिहाइड्रोहैलोजनीकरण) |
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