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JEE Advanced 2027: High-Weightage Chemistry Questions

JEE Chemistry • 10 questions • Free on ExamBattle

Practice Questions

  1. Q1

    For a spontaneous electrochemical cell reaction, E°cell must be:

    • A. Zero
    • B. Positive
    • C. Negative
    • D. Equal to 1
  2. Q2

    The Nernst equation at 298 K for the cell Zn|Zn²⁺||Cu²⁺|Cu has the form E = E° − (0.0592/2)log([Zn²⁺]/[Cu²⁺]). If [Zn²⁺] = 0.1 M and [Cu²⁺] = 0.01 M, E = E° + ?

    • A. + 0.0296 V
    • B. − 0.0296 V
    • C. + 0.0592 V
    • D. 0
  3. Q3

    Which of the following dienes undergoes Diels-Alder reaction?

    • A. 1,2-butadiene (allene type)
    • B. 1,3-butadiene (s-cis conformation)
    • C. Isolated dienes
    • D. Any alkene
  4. Q4

    Equivalent conductance at infinite dilution (Λ∞) for weak electrolytes is determined by:

    • A. Measuring at very low concentration
    • B. Kohlrausch law of independent migration of ions
    • C. Direct extrapolation
    • D. Ostwald dilution law
  5. Q5

    The IUPAC name of CH₃-CH=CH-CHO is:

    • A. But-2-enal
    • B. Crotonaldehyde only
    • C. But-3-enal
    • D. 2-butenal
  6. Q6

    Ozonolysis of 2-butene followed by reductive workup gives:

    • A. Two molecules of CH₃CHO
    • B. CH₃COOH + CH₃COOH
    • C. CH₃CHO + HCHO
    • D. One molecule of butanedial

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