Question:
The product of which of the following reactions undergo hydrolysis by SN1 mechanism?
The product of which of the following reactions undergo hydrolysis by SN1 mechanism?
Show Hint
In SN1 reactions, the stability of the carbocation is crucial. Reactions that involve the formation of a stable carbocation, such as those involving resonance or hyperconjugation, are more likely to undergo the SN1 mechanism.
Updated On: Mar 18, 2026
- C,D ONLY
- A,B,C ONLY
- B,C ONLY
- A,D ONLY
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The SN1 mechanism involves the formation of a carbocation intermediate. For a reaction to proceed via the SN1 mechanism, the leaving group must leave, forming a stable carbocation, which is then attacked by the nucleophile.
- Option A: The reaction of \( {C}_6{H}_5{Br} \) with water leads to the formation of phenol via an SN1 mechanism. This is an SN1 reaction since the phenyl carbocation can stabilize due to resonance, promoting the substitution mechanism.
- Option B: In the reaction \( {CH}_2=CH{C}_6{H}_5 + {HBr} \), the formation of a carbocation intermediate from the alkene is a typical SN1 mechanism. This is because the alkene can undergo a Markovnikov addition, where the formation of a carbocation intermediate is stable enough for the substitution to occur.
- Option C: The reaction of \( {C}_6{H}_5{Cl} + {SOCl}_2 \) typically proceeds through the formation of an intermediate carbocation, making it an SN1 reaction. Here, the chloride ion leaves to form a stable carbocation, which is then attacked by the nucleophile.
- Option D: The reaction of phenyl alcohol with a weak nucleophile (like acetic acid) does not form a carbocation and thus does not proceed via an SN1 mechanism.
Thus, the correct options are (B) and (C).
Was this answer helpful?
0
0
Top AP EAMCET Chemistry Questions
- If the $pK_a$ of acetic acid and $pK_b$ of dimethylamine are $4.76$ and $3.26$ respectively, the pH of dimethyl ammonium acetate solution is
- In the first order thermal decomposition of $C _{2} H _{5} I (g) \longrightarrow C _{2} H _{4}(g)+ HI (g)$, the reactant in the beginning exerts a pressure of $2$ bar in a closed vessel at $600 \,K$. If the partial pressure of the reactant is $0.1$ bar after $1000$ minutes at the same temperature the rate constant in $\min ^{-1}$ is $(\log 2=0.3010)$
- Isopropyl benzene on aerial oxidation followed by acid hydrolysis of the resulting compound yields
- Sodium nitrite is reacted with $H_2SO_4$ to form $NaHSO_4, HNO_3$, water and $X$. Gold is dissolved in aqua-regia to form water, $AuCl^{-}_4$ and $Y. X$ and $Y$ are respectively
- The average translational kinetic energy of a molecule in a gas becomes equal to $0.69\, eV$ at a temperature about [Boltzmann constant = $1.38 \times 10^{-23} \; J \; K^{-1}$]
View More Questions
Top AP EAMCET Rate of a Chemical Reaction Questions
- In the first order thermal decomposition of $C _{2} H _{5} I (g) \longrightarrow C _{2} H _{4}(g)+ HI (g)$, the reactant in the beginning exerts a pressure of $2$ bar in a closed vessel at $600 \,K$. If the partial pressure of the reactant is $0.1$ bar after $1000$ minutes at the same temperature the rate constant in $\min ^{-1}$ is $(\log 2=0.3010)$
Which of the following orders are correct regarding their covalent bond character?
i. KF \(<\) KI
ii. SnCl2 \(<\) SnCl4
iii. NaCl \(<\) CuCl- The rate constant of a first order reaction at 400 K and 500 K is respectively \( 2 \times 10^{-5} \, {s}^{-1} \) and \( 4 \times 10^{-3} \, {s}^{-1} \). What is the approximate activation energy (in kJ/mol\(^{-1}\))? (R = 8.3 J mol\(^{-1}\) K\(^{-1}\), log 2 = 0.3)
- Observe the following reactions. Identify the reaction in which the hybridisation of the underlined atom is changed:
- At \(T\) K, the equilibrium constant for the reaction \[ {H}_2(g) + {Br}_2(g) \rightleftharpoons 2 {HBr}(g) \] is 1.6 \(\times\) 10\(^{1}\). If 10 bar of HBr is introduced into a sealed vessel at \(T\) K, the equilibrium pressure of HBr (in bar) is approximately:
View More Questions
Top AP EAMCET Questions
- If $\int \cos x . \cos 2x . \cos 5x dx = A \; \sin 2x + B \sin 4x + C \sin 6x + D \sin 8x + k $ (where $k$ is the arbitrary constant of integration), then $\frac{1}{B} + \frac{1}{C} = $
- If $k$ is one of the roots of the equation $x^2 - 25x + 24 = 0 $ such that $A = \begin{bmatrix}1&2&1\\ 3&2&3\\ 1&1&k\end{bmatrix} $ is a non-singular matrix, then $A^{-1}$ =
- If only $\frac{1}{51}^{th}$ ot the main current is to be passed through a galvanometer then the shunt required is $R_1$ and if only $\frac{1}{11}^{th}$ of the main voltage is to be developed across the galvanometer, then the resistance required is $R_2$. Then $\frac{R_2}{R_1} =$
- If $p$ and $q$ are respectively the global maximum and global minimum of the function $f(x) = x^2 e^{2x}$ on the interval $[-2, 2]$ , then $pe^{-4} + qe^4 = $
- If $\displaystyle\sum^n_{k - 1} \tan^{-1} \left( \frac{1}{k^2 + k + 1} \right) = \tan^{-1} (\theta) $ , then $\theta$ =
View More Questions