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 primary structural component of plant cell walls?
  • A. Starch
  • B. Glycogen
  • C. Cellulose
  • D. Chitin
Q. What is the primary structure of a polymer determined by?
  • A. The arrangement of monomers
  • B. The molecular weight
  • C. The type of bonds
  • D. The color of the polymer
Q. What is the primary structure of a protein determined by?
  • A. Hydrogen bonds
  • B. Ionic bonds
  • C. Peptide bonds
  • D. Disulfide bridges
Q. What is the primary structure of a protein?
  • A. The sequence of amino acids
  • B. The folding of the polypeptide chain
  • C. The arrangement of multiple polypeptide chains
  • D. The interaction between side chains
Q. What is the primary type of bonding in diamond?
  • A. Ionic
  • B. Covalent
  • C. Metallic
  • D. Hydrogen
Q. What is the primary type of bonding in ionic compounds?
  • A. Covalent bonding
  • B. Ionic bonding
  • C. Metallic bonding
  • D. Hydrogen bonding
Q. What is the primary type of bonding in polymers?
  • A. Ionic bonding
  • B. Covalent bonding
  • C. Metallic bonding
  • D. Hydrogen bonding
Q. What is the primary type of bonding in sodium chloride (NaCl)?
  • A. Covalent
  • B. Ionic
  • C. Metallic
  • D. Hydrogen
Q. What is the primary type of decay for an unstable nucleus with too many protons?
  • A. Alpha decay
  • B. Beta decay
  • C. Gamma decay
  • D. Positron emission
Q. What is the primary type of radiation emitted by uranium-238?
  • A. Alpha radiation
  • B. Beta radiation
  • C. Gamma radiation
  • D. X-rays
Q. What is the primary type of radiation emitted during alpha decay?
  • A. Helium nucleus
  • B. Electron
  • C. Photon
  • D. Neutrino
Q. What is the primary type of reaction that alkanes undergo?
  • A. Addition
  • B. Substitution
  • C. Elimination
  • D. Condensation
Q. What is the primary use of a Wheatstone bridge in practical applications?
  • A. To measure voltage
  • B. To measure current
  • C. To measure resistance
  • D. To measure power
Q. What is the primary use of amines in industry?
  • A. Solvents
  • B. Fertilizers
  • C. Dyes
  • D. All of the above
Q. What is the primary use of antihistamines?
  • A. To treat infections
  • B. To relieve allergy symptoms
  • C. To reduce fever
  • D. To promote sleep
Q. What is the primary use of baking soda in cooking?
  • A. Flavor enhancer
  • B. Leavening agent
  • C. Preservative
  • D. Coloring agent
Q. What is the primary use of barium sulfate?
  • A. As a contrast agent in X-ray imaging
  • B. In fireworks
  • C. As a fertilizer
  • D. In batteries
Q. What is the primary use of boron in industry?
  • A. Fertilizers
  • B. Glass production
  • C. Metallurgy
  • D. Pharmaceuticals
Q. What is the primary use of calcium in the industry?
  • A. As a reducing agent
  • B. In the production of cement
  • C. In batteries
  • D. As a fertilizer
Q. What is the primary use of chlorine in water treatment?
  • A. To increase pH
  • B. To remove hardness
  • C. As a disinfectant
  • D. To add minerals
Q. What is the primary use of citric acid in food?
  • A. Preservative
  • B. Flavor enhancer
  • C. Thickener
  • D. Coloring agent
Q. What is the primary use of ethanol in everyday life?
  • A. Fuel
  • B. Solvent
  • C. Antiseptic
  • D. All of the above
Q. What is the primary use of hydrogen in the industry?
  • A. Fertilizers
  • B. Fuel cells
  • C. Plastics
  • D. Glass production
Q. What is the primary use of nuclear fission in power plants?
  • A. To produce nuclear weapons
  • B. To generate heat for electricity
  • C. To create isotopes for medical use
  • D. To study nuclear reactions
Q. What is the primary use of nuclear fission?
  • A. Medical imaging
  • B. Nuclear power generation
  • C. Smoke detectors
  • D. Radiocarbon dating
Q. What is the primary use of nuclear reactors?
  • A. To produce nuclear weapons
  • B. To generate electricity
  • C. To create isotopes for medical use
  • D. To study nuclear physics
Q. What is the primary use of polarizers in photography?
  • A. To increase brightness
  • B. To reduce glare
  • C. To enhance colors
  • D. To focus light
Q. What is the primary use of potassium in agriculture?
  • A. Fertilizer
  • B. Pesticide
  • C. Herbicide
  • D. Soil conditioner
Q. What is the primary use of radioactive isotopes in medicine?
  • A. Energy production
  • B. Diagnostic imaging
  • C. Food preservation
  • D. Industrial applications
Q. What is the primary use of silicon in the industry?
  • A. Fertilizers
  • B. Semiconductors
  • C. Glass production
  • D. Alloys
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