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Biomolecules Carbohydrates NEET MCQ & Practice Questions

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Biomolecules Carbohydrates Revision Guide for NEET Chemistry

Biomolecules Carbohydrates is part of NEET Chemistry preparation. A strong revision plan should combine concept review with exam-style questions so that definitions, relationships, calculations and exceptions are recalled accurately.

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Important Topics

  • Core definitions and principles
  • Important equations or relationships
  • Common applications and examples
  • Frequently confused concepts
  • Exam-style multiple-choice questions
  • Error review and targeted revision

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What to practise in Biomolecules Carbohydrates

Concept Revision

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Top 20 Biomolecules Carbohydrates MCQs with Answers

These public questions are selected from the exact Biomolecules Carbohydrates chapter, screened for topic relevance and deduplicated so repeated versions of the same MCQ are not shown publicly. Use them for quick revision, then sign in to attempt the complete test experience with more questions, results and performance review.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

1. Which fundamental condition must be respected in solving Biomolecules Carbohydrates problems?

  • A. Assume coefficients are one
  • B. Ignore limiting conditions
  • C. Conservation of atoms and charge
  • D. Ignore units
Answer: C
Explanation: Atom and charge conservation are fundamental.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

2. At dynamic equilibrium relevant to Biomolecules Carbohydrates:

  • A. Catalyst is consumed
  • B. Forward and reverse rates are equal
  • C. All molecular motion stops
  • D. Concentrations must be equal
Answer: B
Explanation: At equilibrium forward and reverse rates are equal.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

3. At constant T and P a spontaneous process has:

  • A. ΔG<0
  • B. ΔG>0
  • C. ΔG=0 always
  • D. ΔH=0
Answer: A
Explanation: Spontaneity requires ΔG<0.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

4. A catalyst in Biomolecules Carbohydrates generally:

  • A. Changes ΔG°
  • B. Changes ΔH
  • C. Changes K at fixed T
  • D. Lowers activation energy without changing K at fixed T
Answer: D
Explanation: Catalysts affect kinetics, not equilibrium thermodynamics.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

5. Oxidation means:

  • A. No oxidation-number change
  • B. Gain of protons
  • C. Loss of electrons
  • D. Gain of electrons
Answer: C
Explanation: Oxidation is electron loss.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

6. Reduction means:

  • A. Loss of protons
  • B. Gain of electrons
  • C. Loss of electrons
  • D. Increase in oxidation number
Answer: B
Explanation: Reduction is electron gain.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

7. A Lewis acid is:

  • A. Electron-pair acceptor
  • B. Electron-pair donor
  • C. Always proton donor
  • D. Always anion
Answer: A
Explanation: Lewis acids accept electron pairs.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

8. A Lewis base is:

  • A. Electron-pair acceptor
  • B. Always cation
  • C. Always oxidant
  • D. Electron-pair donor
Answer: D
Explanation: Lewis bases donate electron pairs.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

9. Which is a state function?

  • A. Work
  • B. Path length
  • C. Enthalpy
  • D. Heat
Answer: C
Explanation: Enthalpy is a state function.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

10. The correct relation is:

  • A. ΔG°=RT/K
  • B. ΔG°=-RT lnK
  • C. ΔG°=RT lnK
  • D. ΔG°=-KRT
Answer: B
Explanation: ΔG°=-RTlnK.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

11. For a first-order process, half-life is:

  • A. 0.693/k
  • B. k/0.693
  • C. 1/(k[A]0)
  • D. [A]0/(2k)
Answer: A
Explanation: t1/2=0.693/k.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

12. Arrhenius equation is:

  • A. k=Ae^(Ea/RT)
  • B. k=EaRT
  • C. k=A/RT
  • D. k=Ae^(-Ea/RT)
Answer: D
Explanation: Arrhenius equation relates k, Ea and T.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

13. 0.20 mol solute in 0.50 L solution has molarity:

  • A. 2.50 M
  • B. 0.70 M
  • C. 0.40 M
  • D. 0.10 M
Answer: C
Explanation: M=0.20/0.50=0.40 M.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

14. For a weak acid, larger Ka means:

  • A. Stronger conjugate acid
  • B. Stronger acid
  • C. Weaker acid
  • D. No ionisation
Answer: B
Explanation: Larger Ka means greater ionisation.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

15. At 25°C:

  • A. pH+pOH=14
  • B. pH+pOH=7
  • C. pH=pOH always
  • D. pH+pOH=1
Answer: A
Explanation: pH+pOH=pKw=14.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

16. Oxidation in an electrochemical cell occurs at:

  • A. Cathode
  • B. Salt bridge
  • C. Wire
  • D. Anode
Answer: D
Explanation: Oxidation occurs at the anode.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

17. Reduction in an electrochemical cell occurs at:

  • A. Salt bridge
  • B. Wire
  • C. Cathode
  • D. Anode
Answer: C
Explanation: Reduction occurs at the cathode.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

18. Positive E°cell implies:

  • A. No spontaneous reaction
  • B. ΔG°<0
  • C. ΔG°>0
  • D. K<1 necessarily
Answer: B
Explanation: ΔG°=-nFE°.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

19. Higher bond order generally gives:

  • A. Shorter stronger bond
  • B. Longer weaker bond
  • C. Longer stronger bond
  • D. No effect
Answer: A
Explanation: Higher bond order strengthens and shortens bonds.

NEET Chemistry · Biomolecules Carbohydrates · Very Very Hard

20. A nucleophile is:

  • A. Electron-pair acceptor
  • B. Always positive
  • C. Always radical
  • D. Electron-pair donor
Answer: D
Explanation: Nucleophiles donate electron pairs.

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Biomolecules Carbohydrates Practice Tests

Biomolecules Carbohydrates Frequently Asked Questions

How should I prepare Biomolecules Carbohydrates for NEET Chemistry?

Revise the core concepts first, make a short list of important relationships or exceptions, and then solve chapter-focused MCQs while reviewing every error.

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What should I do after getting an MCQ wrong?

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