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OP Tandon: Organic Chemistry Essentials

JEE Chemistry • 10 questions • Free on ExamBattle

Practice Questions

1. Q1

   [OP Tandon] Which reagent converts a primary alcohol to an aldehyde without further oxidation?

   • A. KMnO₄/H⁺
   • B. PCC (Pyridinium chlorochromate)
   • C. K₂Cr₂O₇/H₂SO₄
   • D. Acidified H₂O₂

2. Q2

   [OP Tandon] Markovnikov's rule predicts that in addition of HBr to propene (CH₃CH=CH₂), the product is:

   • A. 1-bromopropane
   • B. 2-bromopropane
   • C. Propanol
   • D. Allyl bromide

3. Q3

   [OP Tandon] The reaction of benzene with Cl₂ in presence of FeCl₃ is an example of:

   • A. Nucleophilic addition
   • B. Electrophilic substitution
   • C. Free radical substitution
   • D. Elimination

4. Q4

   [OP Tandon] Lucas test distinguishes between primary, secondary and tertiary alcohols using:

   • A. NaOH + I₂
   • B. ZnCl₂ + conc. HCl
   • C. Fehling's solution
   • D. Tollens' reagent

5. Q5

   [OP Tandon] Which of the following is the correct order of acidity of carboxylic acids?

   • A. HCOOH > CH₃COOH > CCl₃COOH
   • B. CCl₃COOH > HCOOH > CH₃COOH
   • C. CH₃COOH > HCOOH > CCl₃COOH
   • D. All are equally acidic

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