Download App

9. Hydricarbon — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
Which of the following has maximum stability
  • A
    $\mathop C\limits^ + {H_3}$
  • B
    $C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - H$
  • C
    $C{H_3} - \mathop {\mathop {\mathop C\limits_ + }\limits^| }\limits^H - C{H_3}$
  • ✓
    $\begin{array}{*{20}{c}}
      {\,\,\,\,\,C{H_3}} \\ 
      | \\ 
      {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
    \end{array}$
✓

Answer

Correct option: D.
$\begin{array}{*{20}{c}}
  {\,\,\,\,\,C{H_3}} \\ 
  | \\ 
  {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } 
\end{array}$
d
Stability of carbonium ion or carbocation depends on the adjacent alkyl groups. Alkyl groups exhibit electron releasing $+ I$ effect and hyperconjugative effect which stabilizes the positive charge. $CH _3^{+}$ methyl carbonium ion does not have both of these effects, therefore it is the least stable.

Therefore $\begin{array}{*{20}{c}} {\,\,\,\,\,C{H_3}} \\ | \\ {\mathop {C{H_3} - C - C{H_3}}\limits_ +  } \end{array}$ have maximum stability.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 9. Hydricarbon→9. Hydricarbon — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of them are Non $-$ biodegradable waste?
→
The degree of ionization of a compound depends on
→
Which of the following organic chlorides will not give a Friedel-Craft alkylation  product when heated with benzene and $AlCl_3$ ?
→
Boron halides behave as Lewis acids, because of their
→
Which of the following is least likely to behave as Lewis base?
→
The enthalpy of solution of $BaC{l_2}(s)$ and $BaC{l_2}.2{H_2}O(s)$ are $ - 20.6$ and $8.8\,kJ\,mo{l^{ - 1}}$ respectively. The enthalpy change for the reaction $BaC{l_2}(s) + 2{H_2}O \to $ is......$kJ$
→
According to Bronsted principle, an aqueous solution of $HN{O_3}$ will contain
→
Which one of the following arrangements represents the correct order of solubilities of sparingly soluble salts $Hg_2Cl_2,\,\,Cr_2(SO_4 )_3,\,\,BaSO_4$ and $CrCl_3$ respectively ?
→
Consider the following reaction : 
$MX_4 + X_2' \to MX_4X_2'$
If atomic number of $M$ is $52$ and $X$ and $X'$ are halogens and $X'$ is more electronegative than $X$. Then choose correct statement regarding given informanon
→
Which one of the following is an incorrect statement
→