| A. \[{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\overset{OMgBr}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-OC{{H}_{2}}C{{H}_{3}}\] |
| B. \[{{C}_{6}}{{H}_{5}}-\underset{{}}{\overset{O}{\mathop{\underset{{}}{\overset{||}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\] |
| C. \[{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\overset{OMgBr}{\mathop{\underset{|}{\overset{||}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\] |
A) A and B
B) A, B and C
C) A and C
D) B and C
Correct Answer: B
Solution :
[b] \[{{C}_{6}}{{H}_{5}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O{{C}_{2}}{{H}_{5}}+C{{H}_{3}}MgBr\xrightarrow{{}}\] \[\underset{(A)}{\mathop{{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{OMgBr}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-O{{C}_{2}}{{H}_{5}}}}\,\xrightarrow{{}}\underset{(B)}{\mathop{{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,}}\,}}\,-{{C}_{2}}{{H}_{5}}OMgBr}}\,\] \[\underset{(C)}{\mathop{\xrightarrow{C{{H}_{3}}MgBr}{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{OMgBr}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{3}}}}\,\xrightarrow{{{H}_{3}}{{O}^{+}}}\] \[\underset{{}}{\mathop{{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{3}}}}\,\]
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