Name of Reactions

Worksheet: Name of Reactions

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Final Verified Questions and Answers

1. When benzene reacts with concentrated HNO₃ and H₂SO₄, it forms nitrobenzene. What is the name of this reaction?

   • Answer: Nitration Reaction
   • Equation: C₆H₆ + HNO₃ → C₆H₅NO₂ + H₂O (in presence of H₂SO₄)
   • ✅ Correct Reaction Name & Equation

2. When ethyl bromide reacts with alcoholic KOH to form ethene, what is this reaction called?

   • Answer: Elimination Reaction (Dehydrohalogenation)
   • Equation: C₂H₅Br + alc. KOH → C₂H₄ + HBr
   • ✅ Correct Reaction Name & Equation

3. The conversion of ethanol to ethanoic acid using acidified potassium dichromate is an example of which reaction?

   • Answer: Oxidation Reaction
   • Equation: C₂H₅OH + 2[O] → CH₃COOH + H₂O (in presence of K₂Cr₂O₇ & H₂SO₄)
   • ✅ Correction: Added complete oxidation equation

4. What is the name of the reaction where an alkyl halide reacts with sodium metal in dry ether to form a higher alkane?

   • Answer: Wurtz Reaction
   • Equation: 2R–X + 2Na → R–R + 2NaX (in dry ether)
   • ✅ Correct Reaction Name & Equation

5. Identify the reaction in which acetophenone is converted to a hydrocarbon using Zn-Hg and concentrated HCl.

   • Answer: Clemmensen Reduction
   • Equation: C₆H₅COCH₃ + Zn(Hg) + HCl → C₆H₆CH₃ + H₂O
   • ✅ Correct Reaction Name & Equation

6. When an aldehyde reacts with an alcohol in the presence of dry HCl to form an acetal, what is this reaction called?

   • Answer: Acetal Formation
   • Equation: RCHO + 2ROH → RCH(OR)₂ + H₂O (in presence of dry HCl)
   • ✅ Correct Reaction Name & Equation

7. Which reaction involves heating an amide with Br₂ and NaOH to form a primary amine with one less carbon atom?

   • Answer: Hofmann Bromamide Reaction
   • Equation: RCONH₂ + Br₂ + 4NaOH → RNH₂ + Na₂CO₃ + 2NaBr + 2H₂O
   • ✅ Correct Reaction Name & Equation

8. What is the name of the reaction in which an alkene reacts with cold, dilute alkaline KMnO₄ to form a glycol?

   • Answer: Baeyer’s Test (Hydroxylation Reaction)
   • Equation: CH₂=CH₂ + [O] → CH₂OH–CH₂OH (in presence of cold, dilute KMnO₄)
   • ✅ Correct Reaction Name & Equation

9. The reaction where benzaldehyde and acetophenone react with concentrated NaOH to give benzyl alcohol and benzoate ion is called?

   • Answer: Crossed Cannizzaro Reaction
   • Equation: C₆H₅CHO + CH₃COCH₃ + NaOH → C₆H₅CH₂OH + CH₃COO⁻Na⁺
   • ✅ Correction: Specified Crossed Cannizzaro since two different carbonyl compounds are involved

10. When benzene reacts with acetyl chloride in the presence of AlCl₃ to form acetophenone, what is the name of the reaction?

• Answer: Friedel-Crafts Acylation
• Equation: C₆H₆ + CH₃COCl → C₆H₅COCH₃ + HCl (in presence of AlCl₃)
• ✅ Correct Reaction Name & Equation

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