MHT CET · Chemistry · General Organic Chemistry
Which among the following substituent groups decreases the acidic strength of aromatic carboxylic acid?
- A \(-\mathrm{NH}_{2}\)
- B \(-\mathrm{CN}\)
- C \(-\mathrm{Cl}\)
- D \(-\mathrm{N} \mathrm{O}_{2}\)
Answer & Solution
Correct Answer
(A) \(-\mathrm{NH}_{2}\)
Step-by-step Solution
Detailed explanation
\(-\mathrm{NH}_{2}\) is electron donating group which activate the benzene ring to electrophilic attack and make aromatic carboxylic acids less acidic. While \(-\mathrm{Cl},-\mathrm{CN}\) and \(-\mathrm{NO}_{2}\) are electron withdrawing groups which increases the acidity of aromatic carboxylic acids.
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
- Calculate the number of moles of nonvolatile solute dissolved in 0.5 kg solvent if molal elevation constant for solvent is \(2 \mathrm{~kg} \mathrm{~K} \mathrm{~mol}^{-1}\) \(\left[\Delta \mathrm{T}_{\mathrm{b}}=0.8 \mathrm{~K}\right]\)MHT CET 2025 Easy
- Which of the following equations is true for \(8.8 \times 10^{-2} \mathrm{~kg}\) of carbon dioxide gas?MHT CET 2024 Easy
- If salicylic acid (138 u) reacts with acetic anhydride (102 u) to from aspirin (180 u) calculate % atom economyMHT CET 2025 Medium
- Which from following is a correct decreasing order of water solubilities of organic compounds?MHT CET 2025 Easy
- For the cell reaction,
\(\mathrm{Zn}_{(\mathrm{s})}+2 \mathrm{Ag}_{(\mathrm{aq})}^{+} \longrightarrow \mathrm{Zn}_{(\mathrm{aq})}^{+2}+2 \mathrm{Ag}_{(\mathrm{s})}\)
Cell potential is less than \(\mathrm{E}^{\circ}\) cell by 0.0592 V at 298 K whenMHT CET 2025 Medium - What is the percentage dissociation of \(0.1 \mathrm{M}\) acetic acid?
\(\left(\mathrm{Ka}=10^{-5}\right)\)MHT CET 2022 Medium
More PYQs from MHT CET
- Which following compound acts as a flux in extraction of copper from copper pyritesMHT CET 2020 Easy
- If , then the value of isMHT CET 2018 Easy
- Rh factor (Antigen 'D') was first discovered by ____________ in 1940.MHT CET 2023 Easy
- Which of the following is effectively used to remove E. coli bacteria from water?MHT CET 2025 Easy
- The variation of decay rate with number of active nuclei is correctly shown in graph
MHT CET 2020 Easy - In \(\triangle \mathrm{ABC}\), with usual notations, \(2 \mathrm{ac} \sin \left(\frac{1}{2}(\mathrm{~A}-\mathrm{B}+\mathrm{C})\right)\) is equal toMHT CET 2023 Medium