MCQ
Which carbocation is the most stable ?
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
$(b)$ Stability of $C^{\oplus } \, \propto$ extent of conjugation
$(b)$ Stability of $C^{\oplus } \, \propto$ extent of conjugation
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Excited state of chlorine in $ClF_3$ is
→$17\,mg$ of a hydrocarbon (M.F. $C _{10} H _{16}$ ) takes up $8.40\,mL$ of the $H _2$ gas measured at $0^{\circ}\,C$ and $760\,mm$ of $Hg$. Ozonolysis of the same hydrocarbon yields $Image$ The number of double bond/s present in the hydrocarbon is $...........$.
→Enthalpy of sublimation of a substance is equal to
Effective atomic number of $Co(CO)_4$ is $35$, hence it is less stable. It attains stability by
→Prof. Sandy Gilbert asked his students to prepare $2-$ chloropropane by different methods
→Kaushal's method : $\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_3}\xrightarrow{{KCl}}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
Preeti's method : $C{H_3} - CH = C{H_2}\xrightarrow{{C{l_2} + {H_2}O}}$
Raghav's method : $\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_3}\xrightarrow[{Pyridine}]{{SOC{l_2}}}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
The incorrect decreasing order of atomic radii is :
The most suitable reagent for the conversion of $RC{H_2}OH \to RCHO$ is
→Match the organic compounds in column $-I$ with the Lassaigne's test results in column $-II$ appropriately
→| Column $-I$ | Column $-II$ |
| $(A)$ Aniline | $(i)$ Red colour with $FeCl_3$ |
| $(B)$ Benzene sulfonic acid | $(ii)$ Violet colour with sodium nitroprusside |
| $(C)$ Thiourea | $(iii)$ Blue colour with hot and acidic solution of $FeSO_ 4$ |
Nitrobenzene on reaction with conc. $HNO_3/H_2SO_4$ at $80-100\,^o C$ forms which one of the following products ?
→Which has trigonal bipyramidal shape ?