| Column - I | Column - II | ||
| \[{{C}_{2}}{{H}_{6}}\xrightarrow{C{{l}_{2}}/UV\,\,light}{{C}_{2}}{{H}_{5}}Cl\] | (p) | Finkelstein reaction | |
| \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\xrightarrow[273-278K]{NaN{{O}_{2}}+HCL/C{{u}_{2}}C{{l}_{2}}}{{C}_{6}}{{H}_{5}}Cl\] | (q) | Free radical substitution | |
| \[C{{H}_{3}}Cl+NaI\to C{{H}_{3}}I+NaCl\] | (r) | Swarts reaction | |
| \[C{{H}_{3}}-Br+AgF\to C{{H}_{3}}F+AgBr\] | (s) | Sandmeyer?s reaction | |
A) A\[\to \](q), B\[\to \](s), C\[\to \](p), D\[\to \](r)
B) A\[\to \](q), B\[\to \](r), C\[\to \](p), D\[\to \](s)
C) A\[\to \](r), B\[\to \](p), C\[\to \](s), D\[\to \](q)
D) A\[\to \](s), B\[\to \](r), C\[\to \](p), D\[\to \](q)
Correct Answer: A
Solution :
[a] Alkyi iodides are often prepared by the reaction of alkyl chlorides/bromides with Nal in dry acetone. This reaction is known as Finkelstein reaction. \[R-X+NaI\to R-I+NaX\] \[X=CL,Br\] NaCl or NaBr thus formed is precipitated in dry acetone. It facilitates the forword reaction according to Le Chatelier's principle. The synthesis of alkyl fluorides is best accomplished by heating an alkyl chloride/bromide in the presence of a metallic fluoride such as AgF, \[H{{g}_{2}}{{F}_{2}},Co{{F}_{2}}\,\text{or}\,\,Sb{{F}_{3}}.\] The reaction is termed as Swarts reaction. \[{{H}_{3}}C-Br+AgF\to {{H}_{3}}C-F+AgBr\]
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