JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism
For the given molecule, "\(x\)", the preferred site for the attack of the electrophile is :
- A Predominantly at "r"
- B "r" and "u"
- C "p" and "s"
- D Predominantly at "u"
Answer & Solution
Correct Answer
(D) Predominantly at "u"
Step-by-step Solution
Detailed explanation
The given molecule, benzanilide, contains two phenyl rings with different reactivities towards electrophilic aromatic substitution. The left phenyl ring is attached to the carbonyl carbon of the amide group (\(-C(=O)NHPh\)). The carbonyl group is electron-withdrawing due to its…
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
- \(4.0\,moles\) of argon and \(5.0\, moles\) of \(PCI _{5}\) are introduced into an evacuated flask of \(100\, litre\) capacity at \(610\, K\). The system is allowed to equilibrate. At equilibrium, the total pressure of mixture was found to be \(6.0 \,atm\). The \(K _{ p }\) for the reaction is ...... [Given : \(R=0.082 \,L \,atm\, K ^{-1}\, mol ^{-1}\) ]JEE Mains 2022 Hard
- Correct statements regarding Arrhenius equation among the following are:
(A) Factor \(e^{-Ea/RT}\) corresponds to fraction of molecules having kinetic energy less than Ea.
(B) At a given temperature, lower the Ea, faster is the reaction.
(C) Increase in temperature by about \(10^{\circ}C\) doubles the rate of reaction.
(D) Plot of log k vs \(\frac{1}{T}\) gives a straight line with \(slope = -\frac{Ea}{R}\).
Choose the correct answer from the options given below :JEE Mains 2026 Easy - Given below are two statements: Statement \(I\) : Sulphanilic acid gives esterification test for carboxyl group. Statement \(II\) : Sulphanilic acid gives red colour in Lassigne's test for extra element detection. In the light of the above statements, choose the most appropriate answer from the options given below :JEE Mains 2023 Hard
- Number of moles and number of molecules in \(1.4187\) L of \(SO_2\) at STP respectively are:JEE Mains 2026 Medium
- The number of following statement/s which is/are incorrect is \((A)\) Line emission spectra are used to study the electronic structure \((B)\) The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet \((C)\) An absorption spectrum is like the photographic negative of an emission spectrum \((D)\) The element helium was discovered in the sun by spectroscopic methodJEE Mains 2023 Medium
- The spin only magnetic moments (in \(BM\)) for free \(\mathrm{Ti}^{3+}, \mathrm{V}^{2+}\) and \(\mathrm{Sc}^{3+}\) ions respectively are (At.No. \(Sc: 21; Ti : 22; V : 23)\)JEE Mains 2021 Hard
More PYQs from JEE Mains
- A system does \(200\,J\) of work and at the same time absorbs \(150 \,\mathrm{~J}\) of heat. The magnitude of the change in internal energy is \(.....\,J.\) (Nearest integer)JEE Mains 2021 Medium
- Let \(\mathrm{A}\) be the set of all points \((\alpha, \beta)\) such that the area of triangle formed by the points \((5,6),(3,2)\) and \((\alpha, \beta)\) is \(12\, square\, units.\) Then the least possible length of a line segment joining the origin to a point in \(A,\) is :JEE Mains 2021 Hard
- Let \(A = \left( {\begin{array}{*{20}{c}}
{\cos \,\alpha }&{ - \sin \,\alpha }\\
{\sin \,\alpha }&{\cos \,\alpha }
\end{array}} \right)\), \(\left( {\alpha \in R} \right)\) such that \({A^{32}} = \left( {\begin{array}{*{20}{c}}
0&{ - 1}\\
1&0
\end{array}} \right)\). Then a value of \(\alpha \) isJEE Mains 2019 Hard - If \(f(x)=\int \frac{5 x^{8}+7 x^{6}}{\left(x^{2}+1+2 x^{7}\right)^{2}} d x,(x \geq 0), f(0)=0\) and \(f(1)=\frac{1}{K},\) then the value of \(K\) isJEE Mains 2021 Hard
- Let \(f(x)=\sqrt{\lim _{r \rightarrow x}\left\{\frac{2 r^2\left[(f(r))^2-f(x) f(r)\right]}{r^2-x^2}-r^3 e^{\frac{f(r)}{r}}\right\}}\) be differentiable in \((-\infty, 0) \cup(0, \infty)\) and \(f(1)=1\). Then the value of \(ea\), such that \(f(a)=0\), is equal to ...........JEE Mains 2024 Hard
- If average depth of an ocean is \(4000 \mathrm{~m}\) and the bulk modulus of water is \(2 \times 10^9 \mathrm{Nm}^{-2}\), then fractional compression \(\frac{\Delta V}{V}\) of water at the bottom of ocean is \(\alpha \times 10^{-2}\). The value of \(\alpha\) is ___________(Given, \(\mathrm{g}=10 \mathrm{~ms}^{-2}, \rho=1000 \mathrm{~kg} \mathrm{~m}^{-3}\) )JEE Mains 2024 Hard