Question:
Identify the product 'A' in the following reaction.
Identify the product 'A' in the following reaction.
Show Hint
Hypophosphorous acid replaces the diazonium group with hydrogen, giving benzene.
Updated On: Nov 12, 2026
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
The reactant is benzenediazonium chloride, \(\text{C}_6\text{H}_5\text{N}_2^+\text{Cl}^-\).
Step 2: Reagent
Mild reducing agents such as hypophosphorous acid (\(\text{H}_3\text{PO}_2\)) with water replace the diazonium group by hydrogen.
Step 3: Reaction
\(\text{C}_6\text{H}_5\text{N}_2\text{Cl}+\text{H}_3\text{PO}_2+\text{H}_2\text{O}\rightarrow\text{C}_6\text{H}_6+\text{N}_2+\text{H}_3\text{PO}_3+\text{HCl}\).
Step 4: Compare the options
The product A is benzene, option (D). Option (A) is benzonitrile, which would need CuCN.
Final Answer:
Product A is benzene. \[ \boxed{\text{(D) }\text{benzene}} \]
The reactant is benzenediazonium chloride, \(\text{C}_6\text{H}_5\text{N}_2^+\text{Cl}^-\).
Step 2: Reagent
Mild reducing agents such as hypophosphorous acid (\(\text{H}_3\text{PO}_2\)) with water replace the diazonium group by hydrogen.
Step 3: Reaction
\(\text{C}_6\text{H}_5\text{N}_2\text{Cl}+\text{H}_3\text{PO}_2+\text{H}_2\text{O}\rightarrow\text{C}_6\text{H}_6+\text{N}_2+\text{H}_3\text{PO}_3+\text{HCl}\).
Step 4: Compare the options
The product A is benzene, option (D). Option (A) is benzonitrile, which would need CuCN.
Final Answer:
Product A is benzene. \[ \boxed{\text{(D) }\text{benzene}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Diazonium Salts Questions
- Benzene diazonium chloride on reaction with aniline in mild alkaline medium forms
- Formation of p-hydroxyazobenzene from benzene diazonium chloride and phenol in mild alkaline medium is
- Which among the following is true for Balz–Schiemann reaction?
- What is the bond order of B\(_2\) molecule?
- A metallic element crystallizes in simple cubic lattice. If edge length of the unit cell is 34Å, with density 8 g/cm\(^3\), what is the number of unit cells in 100 g of the metal? (Molar mass of metal = 108 g/mol)
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions