Question:
In the reaction, if X is the reagent and Y is the product, which of the following is not feasible?
In the reaction, if X is the reagent and Y is the product, which of the following is not feasible?
Show Hint
–COOH is electron-withdrawing and meta directing. Friedel–Crafts reactions generally do not work on carboxylic acids directly.
Updated On: May 15, 2025
- X = Conc. HNO3 + Conc. H2SO4; Y = 3-Nitrobenzoic acid
- X = Br2/Fe; Y = 3-Bromobenzoic acid
- X = NaOH, CaO; Y = Benzene
- X = CH3Cl / AlCl3; Y = 3-Methylbenzoic acid
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Benzoic acid cannot be converted to benzene by heating with NaOH and CaO (this reaction, decarboxylation, removes the –COOH group but doesn’t convert it directly to benzene). The rest of the reactions are feasible:
- Nitration at meta position (–COOH is meta directing)
- Bromination at meta position
- Friedel–Crafts alkylation is not feasible directly on benzoic acid due to deactivation, but methylation via specific steps may be possible.
- Nitration at meta position (–COOH is meta directing)
- Bromination at meta position
- Friedel–Crafts alkylation is not feasible directly on benzoic acid due to deactivation, but methylation via specific steps may be possible.
Was this answer helpful?
0
0
Top Questions on Aromatic Substitution Reactions
- Which of the following sets of reagents convert aniline to chlorobenzene?
- AP EAPCET - 2025
- Chemistry
- Aromatic Substitution Reactions
What are X and Y respectively, in the following set of reactions?
- AP EAPCET - 2025
- Chemistry
- Aromatic Substitution Reactions
- What is the product obtained on the reaction of chlorobenzene with concentrated HNO3?
- MHT CET - 2025
- Chemistry
- Aromatic Substitution Reactions
- Product, P is: \[ \text{C}_6\text{H}_6 + \text{Cl}_2(\text{excess}) \xrightarrow{\text{Anhy.AlCl}_3}{\text{dark, cold}} \text{P} \]
- AIIMS - 2024
- Chemistry
- Aromatic Substitution Reactions
What are Y and Z respectively in the following reaction sequence?
- AP EAPCET - 2024
- Chemistry
- Aromatic Substitution Reactions
View More Questions
Questions Asked in AP EAPCET exam
- In a container of volume 16.62 m$^3$ at 0°C temperature, 2 moles of oxygen, 5 moles of nitrogen and 3 moles of hydrogen are present, then the pressure in the container is (Universal gas constant = 8.31 J/mol K)
- AP EAPCET - 2025
- Ideal gas equation
- If \[ A = \begin{bmatrix} x & 2 & 1 \\ -2 & y & 0 \\ 2 & 0 & -1 \end{bmatrix}, \] where \( x \) and \( y \) are non-zero real numbers, trace of \( A = 0 \), and determinant of \( A = -6 \), then the minor of the element 1 of \( A \) is:}
- AP EAPCET - 2025
- Complex numbers
- Two objects of masses 5 kg and 10 kg are placed 2 meters apart. What is the gravitational force between them?
(Use \(G = 6.67 \times 10^{-11}\, \mathrm{Nm^2/kg^2}\))- AP EAPCET - 2025
- Gravitation
- The number of solutions of the equation $4 \cos 2\theta \cos 3\theta = \sec \theta$ in the interval $[0, 2\pi]$ is
- AP EAPCET - 2025
- Trigonometric Identities
- The area (in sq. units) of the triangle formed by the tangent and normal to the ellipse \( 9x^2 + 4y^2 = 72 \) at the point (2, 3) with the X-axis is
- AP EAPCET - 2025
- Coordinate Geometry
View More Questions