How will you prepare the following? (Write only chemical equations.)
(i) Benzene from benzoic acid:
(ii) Phthalimide from phthalic acid:
(iii) \( m \)-Nitrobenzaldehyde from benzaldehyde:
How will you prepare the following? (Write only chemical equations.)
(i) Benzene from benzoic acid:
(ii) Phthalimide from phthalic acid:
(iii) \( m \)-Nitrobenzaldehyde from benzaldehyde:
Show Hint
Solution and Explanation
(ii) Phthalimide from phthalic acid:
\[ C_6H_4(COOH)_2 \xrightarrow{NH_3, \Delta} C_6H_4(CO)NH \]
(iii) \( m \)-Nitrobenzaldehyde from benzaldehyde:
\[ C_6H_5CHO + HNO_3 \xrightarrow{Conc. H_2SO_4} C_6H_4(NO_2)CHO \]
Top Questions on Organic Reactions
Identify A in the following reaction.
- JEE Main - 2026
- Chemistry
- Organic Reactions
- 14.0 g of calcium metal is allowed to react with excess HCl at 1.0 atm pressure and 273 K. Which of the following statements is incorrect?
\([Given: \text{Molar mass of } Ca = 40, Cl = 35.5, H = 1 \text{ g mol}^{-1}] \)- JEE Main - 2026
- Chemistry
- Organic Reactions
For the reaction, \(N_{2}O_{4} \rightleftharpoons 2NO_{2}\) graph is plotted as shown below. Identify correct statements.
A. Standard free energy change for the reaction is 5.40 kJ \(mol^{-1}\).
B. As \(\Delta G\) in graph is positive, \(N_{2}O_{4}\) will not dissociate into \(NO_{2}\) at all.
C. Reverse reaction will go to completion.
D. When 1 mole of \(N_{2}O_{4}\) changes into equilibrium mixture, value of \(\Delta G = -0.84 \text{ kJ mol}^{-1}\).
E. When 2 mole of \(NO_{2}\) changes into equilibrium mixture, \(\Delta G\) for equilibrium mixture is \(-6.24 \text{ kJ mol}^{-1}\).
Choose the correct answer from the following.- JEE Main - 2026
- Chemistry
- Organic Reactions
- Consider the following carbocations: (A) $\text{CH}_3\text{C}^+\text{H}_2 \rightarrow \text{B} \rightarrow \text{CH}_3-\text{C}^+\text{H}-\text{CH}_3 \rightarrow \text{C} \rightarrow (\text{CH}_3)_3\text{C}^+$. Statement-I : B is more stable due to $9\alpha H$. Statement-II: A is less stable due to $3\alpha H$.
- JEE Main - 2026
- Chemistry
- Organic Reactions
- Identify (A)
- JEE Main - 2026
- Chemistry
- Organic Reactions
Questions Asked in UP Board XII exam
- Answer the following questions in about 40 words each:
(b) What did Roosevelt say about fear in the lesson 'Deep Water'?- UP Board XII - 2025
- Literature
- The antonym of 'ancient' is
- UP Board XII - 2025
- Antonyms
- Change any one of the following into indirect speech:
(i) She said, "Brother, I shall give you my watch."- UP Board XII - 2025
- Direct And Indirect Speech
- If the sequence of one strand of DNA is written as follows: 5' - ATGC ATGC ATGC ATGC ATGC - 3', write down the sequence of the complementary strand in 3' → 5' direction.
- UP Board XII - 2025
- Genetics
- Write a note on Intra-Uterine Devices (IUD’s) and their applications.
- UP Board XII - 2025
- Reproductive Biology