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. Which of the following statements about alkenes is true?
  • A. They are saturated hydrocarbons.
  • B. They can undergo polymerization.
  • C. They do not react with electrophiles.
  • D. They have a higher boiling point than alkanes.
Q. Which of the following statements about alkynes is incorrect?
  • A. They are unsaturated hydrocarbons.
  • B. They contain at least one triple bond.
  • C. They are more reactive than alkenes.
  • D. They have a higher boiling point than alkenes.
Q. Which of the following statements about alkynes is true?
  • A. They are less acidic than alkenes.
  • B. They can undergo polymerization.
  • C. They have a higher boiling point than alkenes.
  • D. They are more stable than alkenes.
Q. Which of the following statements about amines is incorrect?
  • A. Amines are basic in nature.
  • B. Amines can form salts with acids.
  • C. Amines have higher boiling points than alcohols.
  • D. Amines can act as nucleophiles.
Q. Which of the following statements about aromatic amines is true?
  • A. They are more basic than aliphatic amines
  • B. They are less basic than aliphatic amines
  • C. They do not react with acids
  • D. They are neutral compounds
Q. Which of the following statements about aromatic compounds is true?
  • A. They are always colorless
  • B. They have a sweet smell
  • C. They are non-toxic
  • D. They can be carcinogenic
Q. Which of the following statements about buoyancy is true?
  • A. Buoyant force acts downward
  • B. Buoyant force is equal to the weight of the fluid displaced
  • C. Buoyant force depends on the shape of the object
  • D. Buoyant force is always equal to the weight of the object
Q. Which of the following statements about carboxylic acids is true?
  • A. They are always soluble in water
  • B. They have higher boiling points than alcohols
  • C. They can form hydrogen bonds
  • D. All of the above
Q. Which of the following statements about catalysts is true?
  • A. They are consumed in the reaction
  • B. They increase the activation energy
  • C. They provide an alternative reaction pathway
  • D. They change the equilibrium constant
Q. Which of the following statements about circularly polarized light is true?
  • A. It has no preferred direction of oscillation
  • B. It oscillates in a single plane
  • C. It can be converted to linearly polarized light
  • D. It is always produced by reflection
Q. Which of the following statements about colligative properties is true?
  • A. They depend on the identity of the solute
  • B. They depend on the number of solute particles
  • C. They are independent of temperature
  • D. They are only applicable to ionic compounds
Q. Which of the following statements about diffraction gratings is true?
  • A. They can only produce first-order maxima
  • B. They can produce multiple orders of maxima
  • C. They do not produce any maxima
  • D. They only work with monochromatic light
Q. Which of the following statements about diffraction is true?
  • A. Diffraction can occur with any type of wave
  • B. Diffraction only occurs with sound waves
  • C. Diffraction is only observed in light waves
  • D. Diffraction is a phenomenon exclusive to electromagnetic waves
Q. Which of the following statements about dynamic equilibrium is true?
  • A. The concentrations of reactants and products are equal
  • B. The rate of the forward reaction equals the rate of the reverse reaction
  • C. The reaction has stopped
  • D. The system is at rest
Q. Which of the following statements about elastic potential energy stored in a stretched wire is true?
  • A. It is proportional to the square of the extension
  • B. It is proportional to the extension
  • C. It is independent of the material
  • D. It is always constant
Q. Which of the following statements about electric field lines is true?
  • A. They can cross each other
  • B. They are always straight
  • C. They point from positive to negative charges
  • D. They are always circular
Q. Which of the following statements about electromagnetic waves is true?
  • A. They require a medium to propagate
  • B. They travel at the speed of sound
  • C. They are transverse waves
  • D. They are longitudinal waves
Q. Which of the following statements about electrons is true?
  • A. They have a positive charge
  • B. They are found in the nucleus
  • C. They have a negligible mass
  • D. They are stationary
Q. Which of the following statements about enthalpy is true?
  • A. Enthalpy is an extensive property.
  • B. Enthalpy is an intensive property.
  • C. Enthalpy cannot be measured directly.
  • D. Enthalpy is always positive.
Q. Which of the following statements about entropy is true?
  • A. Entropy is a measure of disorder.
  • B. Entropy decreases in spontaneous processes.
  • C. Entropy is always constant.
  • D. Entropy cannot be calculated.
Q. Which of the following statements about equilibrium constants is true?
  • A. K is temperature dependent
  • B. K is pressure dependent
  • C. K is concentration dependent
  • D. K is always equal to 1
Q. Which of the following statements about ethers is true?
  • A. Ethers are more polar than alcohols
  • B. Ethers have higher boiling points than alcohols
  • C. Ethers are less reactive than alcohols
  • D. Ethers can form hydrogen bonds with water
Q. Which of the following statements about fluids is true?
  • A. Fluids can only flow in one direction
  • B. Fluids have a definite shape
  • C. Fluids can exert pressure in all directions
  • D. Fluids are incompressible
Q. Which of the following statements about geostationary satellites is true?
  • A. They orbit the Earth in a polar orbit
  • B. They have a period of 24 hours
  • C. They are closer to the Earth than low Earth orbit satellites
  • D. They can be used for global positioning
Q. Which of the following statements about gravitational potential energy (U) is true?
  • A. U increases as two masses move closer together
  • B. U decreases as two masses move closer together
  • C. U is always positive
  • D. U is independent of distance
Q. Which of the following statements about gravitational potential energy is true?
  • A. It is always positive.
  • B. It can be negative.
  • C. It is independent of the reference point.
  • D. It increases with distance.
Q. Which of the following statements about haloalkanes is true?
  • A. They are polar compounds
  • B. They are non-polar compounds
  • C. They do not react with nucleophiles
  • D. They are always solids
Q. Which of the following statements about ideal solutions is true?
  • A. They obey Raoult's law at all concentrations
  • B. They have a constant boiling point
  • C. They have a constant density
  • D. They do not exhibit colligative properties
Q. Which of the following statements about inductive effect is correct?
  • A. It is a permanent effect
  • B. It is a temporary effect
  • C. It only affects alkenes
  • D. It increases basicity
Q. Which of the following statements about isomerism is FALSE?
  • A. Isomers have the same molecular formula.
  • B. Isomers have different physical properties.
  • C. Isomers have different chemical properties.
  • D. Isomers cannot exist in the same physical state.
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