JEE Mains · Chemistry · STD 12 - 7. Alcohol, phenol and ethers
In the above reaction. Left hand side and right hand side rings are named as ' \(A\) ' and ' \(B\) ' respectively. They undergo ring expansion. The correct statement for this process is:
- A Finally both rings will become six membered each.
- B Finally both rings will become five membered each.
- C Only '\(A\)' will become \(6\) membered.
- D Ring expansion can go upto seven membered rings
Answer & Solution
Correct Answer
(A) Finally both rings will become six membered each.
Step-by-step Solution
Detailed explanation
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
- \(\mathrm{N}_{2} \mathrm{O}_{5(9)} \rightarrow 2 \mathrm{NO}_{2(9)}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})}\) In the above first order reaction the initial concentration of \(\mathrm{N}_{2} \mathrm{O}_{5}\) is \(2.40 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}\) at \(318 \,K.\) The concentration of \(\mathrm{N}_{2} \mathrm{O}_{5}\) after \(1\, hour\) was \(1.60 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}\), The rate constant of the reaction at \(318\, \mathrm{~K}\) is \(.....\,\times 10^{-3} \mathrm{~min}^{-1}\). (Nearest integer) [Given: \(\log 3=0.477, \log 5=0.699\) ]JEE Mains 2021 Medium
- For the reaction, \(3A+2B \to C + D\), the differential rate law can be written asJEE Mains 2014 Hard
- The longest wavelength of light that can be used for the ionisation of lithium atom \((Li)\) in its ground state is \(x \times 10^{-8}\, m\). The value of \(x\) is \(.....\) (Nearest Integer) (Given : Energy of the electron in the first shell of the hydrogen atom is \(-2.2 \times 10^{-18} \,J\); \(h =6.63 \times 10^{-34}\, Js\) and \(c =3 \times 10^{8} \,ms ^{-1}\) )JEE Mains 2022 Medium
- The \(\alpha\)-Helix and \(\beta\) - Pleated sheet which structures of protein are associated with its?JEE Mains 2025 Easy
- Enthalpy of sublimation of iodine is \(24\, cal\, g^{-1}\) at \(200\,^oC\). If specific heat of \(I_2(s)\) and \(I_2(vap)\) are \(0.055\) and \(0.031\, cal\, g^{-1}K^{-1}\) respectively, then enthalpy of sublimation of iodine at \(250\,^oC\) in \(cal\, g^{-1}\) isJEE Mains 2019 Hard
- The major product of the following reaction is
JEE Mains 2019 Hard
More PYQs from JEE Mains
- If \(\frac{6}{3^{12}}+\frac{10}{3^{11}}+\frac{20}{3^{10}}+\frac{40}{3^{9}}+\ldots . .+\frac{10240}{3}=2^{ n } \cdot m\), where \(m\) is odd, then \(m . n\) is equal toJEE Mains 2022 Hard
- A body of mass \(50 \mathrm{~kg}\) is lifted to a height of \(20 \mathrm{~m}\) from the ground in the two different ways as shown in the figures. The ratio of work done against the gravity in both the respective cases will be _______.
JEE Mains 2024 Hard - The area bounded by the curve \(y=\left|x^{2}-9\right|\) and the line \(y=3\) isJEE Mains 2022 Hard
- A particle of mass \(0.50 \mathrm{~kg}\) executes simple harmonic motion under force \(\mathrm{F}=-50\left(\mathrm{Nm}^{-1}\right) \mathrm{x}\). The time period of oscillation is \(\frac{x}{35} s\). The value of \(x\) is _______. (Given \(\pi=\frac{22}{7}\) )JEE Mains 2024 Hard
- Let\(\int \frac{2-\tan x}{3+\tan x} d x=\frac{1}{2}\left(\alpha x+\log _e|\beta \sin x+\gamma \cos x|\right)+C\), where \(\mathrm{C}\) is the constant of integration. Then \(\alpha+\frac{\gamma}{\beta}\) is equal to :JEE Mains 2024 Hard
- Two bar magnets oscillate in a horizontal plane in earth's magnetic field with time periods of \(3\,s\) and \(4\,s\) respectively. If their moments of inertia are in the ratio of \(3: 2\) then the ratio of their magnetic moments will e.JEE Mains 2022 Medium