Arrange the carbanions, ( CH _ 3 )_ 3 C , C Cl _ 3 , ( CH _ 3 )_ 2 C H , C _ 6 H _ 5 C H…

Chemistry · JEE Main · NTA ExamsSome Basic Principles of Organic Chemistry

Arrange the carbanions,
\(\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}}, \stackrel{\ominus}{\mathrm{C}} \mathrm{Cl}_{3},\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}, \mathrm{C}_{6} \mathrm{H}_{5} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}\) in order of their decreasing stability
  1. \(\mathrm{C}_{6} \mathrm{H}_{5} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}>\stackrel{\ominus}{\mathrm{C}} \mathrm{Cl}_{3}>\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}}>\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}\)
  2. \(\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}>\stackrel{\ominus}{\mathrm{C}} \mathrm{Cl}_{3}>\mathrm{C}_{6} \mathrm{H}_{5} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}>\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}}\)
  3. \(\stackrel{\ominus}{\mathrm{C}} \mathrm{Cl}_{3}>\mathrm{C}_{6} \mathrm{H}_{5} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}>\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}>\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}}\)
  4. \(\left(\mathrm{CH}_{3}\right)_{3} \stackrel{\ominus}{\mathrm{C}}>\left(\mathrm{CH}_{3}\right)_{2} \stackrel{\ominus}{\mathrm{C}} \mathrm{H}>\stackrel{\ominus}{\mathrm{C}} \mathrm{H}_{2}>\stackrel{\ominus}{\mathrm{C}} \mathrm{Cl}_{3}\)

Answer

(C) C Cl _ 3 > C _ 6 H _ 5 C H _ 2 > ( CH _ 3 )_ 2 C H > ( CH _ 3 )_ 3 C

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