JEE Main MCQ & Objective Questions

The JEE Main exam is a crucial step for students aspiring to enter prestigious engineering colleges in India. It tests not only knowledge but also the ability to apply concepts effectively. Practicing MCQs and objective questions is essential for scoring better, as it helps in familiarizing students with the exam pattern and enhances their problem-solving skills. Engaging with practice questions allows students to identify important questions and strengthen their exam preparation.

What You Will Practise Here

  • Fundamental concepts of Physics, Chemistry, and Mathematics
  • Key formulas and their applications in problem-solving
  • Important definitions and theories relevant to JEE Main
  • Diagrams and graphical representations for better understanding
  • Numerical problems and their step-by-step solutions
  • Previous years' JEE Main questions for real exam experience
  • Time management strategies while solving MCQs

Exam Relevance

The topics covered in JEE Main are not only significant for the JEE exam but also appear in various CBSE and State Board examinations. Many concepts are shared with the NEET syllabus, making them relevant across multiple competitive exams. Common question patterns include conceptual applications, numerical problems, and theoretical questions that assess a student's understanding of core subjects.

Common Mistakes Students Make

  • Misinterpreting the question stem, leading to incorrect answers
  • Neglecting units in numerical problems, which can change the outcome
  • Overlooking negative marking and not managing time effectively
  • Relying too heavily on rote memorization instead of understanding concepts
  • Failing to review and analyze mistakes from practice tests

FAQs

Question: How can I improve my speed in solving JEE Main MCQ questions?
Answer: Regular practice with timed quizzes and focusing on shortcuts can significantly enhance your speed.

Question: Are the JEE Main objective questions similar to previous years' papers?
Answer: Yes, many questions are based on previous years' patterns, so practicing them can be beneficial.

Question: What is the best way to approach JEE Main practice questions?
Answer: Start with understanding the concepts, then attempt practice questions, and finally review your answers to learn from mistakes.

Now is the time to take charge of your preparation! Dive into solving JEE Main MCQs and practice questions to test your understanding and boost your confidence for the exam.

Q. What is the main storage form of carbohydrates in animals?
  • A. Starch
  • B. Glycogen
  • C. Cellulose
  • D. Chitin
Q. What is the main structural component of plant cell walls?
  • A. Starch
  • B. Glycogen
  • C. Cellulose
  • D. Chitin
Q. What is the main type of isomerism exhibited by butene (C4H8)?
  • A. Structural isomerism
  • B. Geometric isomerism
  • C. Optical isomerism
  • D. Functional isomerism
Q. What is the main type of reaction that alkanes undergo?
  • A. Addition
  • B. Substitution
  • C. Elimination
  • D. Condensation
Q. What is the main use of hydrogen in the Haber process?
  • A. To produce ammonia
  • B. To produce water
  • C. To produce hydrogen peroxide
  • D. To produce methane
Q. What is the main use of polycarbonate?
  • A. Insulation
  • B. Optical lenses
  • C. Textiles
  • D. Adhesives
Q. What is the main use of polyvinyl chloride (PVC)?
  • A. Insulation
  • B. Pipes and fittings
  • C. Textiles
  • D. Adhesives
Q. What is the major product of the hydration of propene?
  • A. Propan-1-ol
  • B. Propan-2-ol
  • C. Butanol
  • D. Ethylene glycol
Q. What is the major product of the reaction between 1-bromo-2-methylpropane and sodium ethoxide?
  • A. 1-ethoxy-2-methylpropane
  • B. 2-ethoxy-2-methylpropane
  • C. 1-bromo-2-ethoxypropane
  • D. 2-bromo-2-methylpropane
Q. What is the major product of the reaction between 1-bromobutane and sodium ethoxide in ethanol?
  • A. 1-ethoxybutane
  • B. 2-ethoxybutane
  • C. butane
  • D. no reaction
Q. What is the major product of the reaction between 1-bromobutane and sodium hydroxide in ethanol?
  • A. 1-butanol
  • B. 2-butanol
  • C. butyl bromide
  • D. butyl ether
Q. What is the major product of the reaction between chlorobenzene and sodium hydroxide at high temperature?
  • A. Phenol
  • B. Benzene
  • C. Chlorobenzene
  • D. Sodium phenoxide
Q. What is the major product of the reaction of 1-bromobutane with sodium ethoxide in ethanol?
  • A. 1-butene
  • B. 2-butene
  • C. butane
  • D. no reaction
Q. What is the major product of the reaction of 1-bromobutane with sodium ethoxide?
  • A. Butane
  • B. Ethyl butyl ether
  • C. 1-butene
  • D. 2-butene
Q. What is the major product of the reaction of 1-butene with HBr?
  • A. 1-bromobutane
  • B. 2-bromobutane
  • C. Butane
  • D. Bromobenzene
Q. What is the major product of the reaction of 2-butyne with H2 in the presence of a catalyst?
  • A. 1-butyne
  • B. butane
  • C. 2-butyne
  • D. 3-butyne
Q. What is the major product of the reaction of propene with HBr?
  • A. 1-Bromopropane
  • B. 2-Bromopropane
  • C. Propyl bromide
  • D. Bromopropene
Q. What is the major product when 1-bromobutane reacts with sodium ethoxide in ethanol?
  • A. 1-ethoxybutane
  • B. 2-ethoxybutane
  • C. butane
  • D. butyl ethyl ether
Q. What is the major product when propene is treated with bromine?
  • A. 1-bromopropane
  • B. 2-bromopropane
  • C. Bromopropane
  • D. No reaction
Q. What is the major product when propene reacts with HBr?
  • A. 1-Bromopropane
  • B. 2-Bromopropane
  • C. Propyl bromide
  • D. Bromopropene
Q. What is the majority charge carrier in a P-type semiconductor?
  • A. Electrons
  • B. Holes
  • C. Neutrons
  • D. Protons
Q. What is the mass defect in a nucleus?
  • A. The difference between the mass of the nucleus and the sum of the masses of its nucleons
  • B. The mass of the nucleus itself
  • C. The mass of the electrons surrounding the nucleus
  • D. The mass of the binding energy
Q. What is the mass of 0.25 moles of glucose (C6H12O6)? (Molar mass = 180 g/mol)
  • A. 45 g
  • B. 90 g
  • C. 60 g
  • D. 75 g
Q. What is the mass of 0.5 moles of CaCO3?
  • A. 50 g
  • B. 25 g
  • C. 100 g
  • D. 75 g
Q. What is the mass of 0.5 moles of NaCl?
  • A. 29 g
  • B. 58 g
  • C. 14 g
  • D. 0.5 g
Q. What is the mass of 0.5 moles of sodium chloride (NaCl)?
  • A. 29 g
  • B. 35 g
  • C. 58 g
  • D. 70 g
Q. What is the mass of 0.75 moles of sulfuric acid (H2SO4)?
  • A. 75 g
  • B. 98 g
  • C. 147 g
  • D. 50 g
Q. What is the mass of 1 mole of water (H2O)?
  • A. 18 g
  • B. 16 g
  • C. 20 g
  • D. 22 g
Q. What is the mass of 2 moles of carbon dioxide (CO2)?
  • A. 44 g
  • B. 22 g
  • C. 88 g
  • D. 66 g
Q. What is the mass of 2 moles of sulfuric acid (H2SO4)?
  • A. 98 g
  • B. 196 g
  • C. 294 g
  • D. 392 g
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