enEnglishguગુજરાતી
JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism
On the treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is
- A \(O2- C3\)
- B \(O5 - C6\)
- C \(C4- O5\)
- D \(C1 - O2\)
Answer & Solution
Correct Answer
(B) \(O5 - C6\)
Step-by-step Solution
Detailed explanation
The lone pair of electrons on \(O2\) is involved in resonance with \(C= C\). Hence \(O2\) will not be protonated. The lone pair of electrons on \(O5\) is not involved in resonance with \(C\, = C\). Hence, \(O5\) will be protonated. Chloride ion will then attack least substituted…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The ratio of number of water molecules in Mohr's salt and potash alum is \(....\,\times 10^{-1}\)JEE Mains 2021 Hard
- \(PCl _{5}\) dissociates as \(PCl _{5}( g ) \rightleftharpoons PCl _{3}( g )+ Cl _{2}( g )\) \(5\) moles of \(PCl _{5}\) are placed in a \(200\) \(litre\) vessel which contains \(2\, moles\) of \(N _{2}\) and is maintained at \(600 \,K\). The equilibrium pressure is \(2.46 \,atm\). The equilibrium constant \(K _{ p }\) for the dissociation of \(PCl _{5}\) is \(......\,\times 10^{-3}\). (nearest integer) (Given: \(R =0.082\, L \,atm \,K ^{-1} \,mol ^{-1}\) : Assume ideal gas behaviour)JEE Mains 2022 Medium
- Given below are two statements: Statement \(I :\) Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom. Statement \(II :\) Bohr'smodel of hydrogen atom contradicts Heisenberg's uncertainty principle. In the light of the above statements, choose the most appropriate answer from the options given below :JEE Mains 2021 Medium
- A gaseous compound of nitrogen and hydrogen contains \(12.5\%\) (by mass) of hydrogen. The density of the compound relative to hydrogen is \(16\) .The molecular formula of the compound isJEE Mains 2014 Hard
- Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds ?
A. \([\text{NiCl}_4]^{2-}\) \(-\) sp\(^3\), tetrahedral, paramagnetic
B. \([\text{Ni(NH}_3)_6]^{2+}\) \(-\) sp\(^3\)d\(^2\), octahedral, paramagnetic
C. \([\text{Ni(CO)}_4]\) \(-\) sp\(^3\), tetrahedral, paramagnetic
D. \([\text{Ni(CN)}_4]^{2-}\) \(-\) dsp\(^2\), square planar, diamagnetic
Choose the correct answer from the options given below :JEE Mains 2026 Medium - Identify \(B\) formed in the reaction. \(\begin{array}{l} Cl -\left( CH _2\right)_4- Cl \xrightarrow{\text { excess } NH _3} A \xrightarrow{ NaOH } \\ B + H _2 O + NaCl\end{array}\)JEE Mains 2024 Hard
More PYQs from JEE Mains
- If the line \(\frac{{x - 3}}{2} = \frac{{y + 2}}{{ - 1}} = \frac{{z + 4}}{3}\) lies in the plane \(lx + my - z = 9\) then \({l^2} + {m^2} = \;.\;.\;.\;.\;.\;\)JEE Mains 2016 Medium
- If the shortest distance between the line \(\vec{r}=(-\hat{i}+3 \hat{k})+\lambda(\hat{i}-a \hat{j})\) and \(\vec{r}=(-\hat{j}+2 \hat{k})+\mu(\hat{i}-\hat{j}+\hat{k})\) is \(\sqrt{\frac{2}{3}}\), then the integral value of \(a\) is equal toJEE Mains 2022 Medium
- Match List - \(I\) with List - \(II\).
Choose the correct answer from the options given below:List - \(I\) List - \(II\) (A). \(ICI\) (I). \(\mathrm{T}\)-Shape (B). \(\mathrm{ICI}_3\) (II). Square pyramidal (C). \(\mathrm{CIF}_5\) (III). Pentagonal bipyramidal (D). \(\mathrm{IF}_7\) (IV). Linear JEE Mains 2024 Medium - Two vessels \(A\) and \(B\) are of the same size and are at same temperature. A contains \(1 \mathrm{~g}\) of hydrogen and \(B\) contains \(1 \mathrm{~g}\) of oxygen. \(\mathrm{P}_{\mathrm{A}}\) and \(\mathrm{P}_{\mathrm{B}}\) are the pressures of the gases in \(A\) and \(\mathrm{B}\) respectively, then \(\frac{\mathrm{P}_{\mathrm{A}}}{\mathrm{P}_{\mathrm{B}}}\) is _______.JEE Mains 2024 Hard
- The frequency of echo will be \(.......Hz\) if the train blowing a whistle of frequency \(320\,Hz\) is moving with a velocity of \(36\,km / h\) towards a hill from which an echo is heard by the train driver. Velocity of sound in air is \(330\,m / s\).JEE Mains 2022 Hard
- Galvanization is applying a coating of :JEE Mains 2016 Easy