MCQ
A triglyceride can have how many different acyl groups?
  • A
    $3$
  • B
    $2$
  • $1$
  • D
    $4$

Answer

Correct option: C.
$1$
c
$ClC{H_2}C{H_2}OH$ is stronger acid than $C{H_3}C{H_2}OH$ due to $-\,I$ effect of $Cl$.

$Cl\, \leftarrow \,\mathop {C{H_2}C{H_2}OH}\limits_{Stronger\,\,acid}  \to \,$ $\,Cl\,\leftarrow \,\underset{\begin{smallmatrix} 
 -ve\,\,charge\,\,on\,\,O \\ 
 dispersed\,\,hence 
 \\ 
 conjugate\,\,base,\,stable 
\end{smallmatrix}}{\mathop{C{{H}_{2}}C{{H}_{2}}{{O}^{-}}\,}}\,+\,{{H}^{+}}$

$\underset{Weaker \,\,acid}{\mathop{C{{H}_{3}}C{{H}_{2}}OH}}\,\,\to \underset{\begin{smallmatrix} 
 -\,\,ve\,\,charge\,\,\operatorname{int}ensified, \\ 
 \,\,\,\,\,\,\,\,hence\,\,conjugatte 
 \\ 
 \,\,\,\,\,\,\,\,base\,\,unstable 
\end{smallmatrix}}{\mathop{C{{H}_{3}}\to \,C{{H}_{2}}{{O}^{-}}\,+}}\,\,{{H}^{+}}$

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