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 arithmetic mean of the first five prime numbers?
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. What is the atomic number of the element with the symbol 'Na'?
  • A. 11
  • B. 12
  • C. 13
  • D. 14
Q. What is the average kinetic energy of a gas molecule at temperature T?
  • A. (3/2)kT
  • B. (1/2)kT
  • C. (3/2)RT
  • D. (1/2)RT
Q. What is the average kinetic energy of one mole of an ideal gas at temperature T?
  • A. (3/2)RT
  • B. (5/2)RT
  • C. (1/2)RT
  • D. (2/3)RT
Q. What is the average power consumed in an AC circuit with a power factor of 0.8 and an RMS voltage of 100 V with a current of 5 A?
  • A. 200 W
  • B. 400 W
  • C. 300 W
  • D. 500 W
Q. What is the average power consumed in an AC circuit with a power factor of 0.8 and a maximum power of 100 W?
  • A. 80 W
  • B. 100 W
  • C. 120 W
  • D. 160 W
Q. What is the axis of symmetry for the parabola defined by the equation y^2 = -12x?
  • A. x = 0
  • B. y = 0
  • C. y = -6
  • D. x = -6
Q. What is the axis of symmetry for the parabola given by the equation y = -2x^2 + 4x + 1?
  • A. x = 1
  • B. y = 1
  • C. x = 2
  • D. y = 2
Q. What is the axis of symmetry for the parabola given by the equation y = 3x^2 + 6x + 2?
  • A. x = -1
  • B. y = -1
  • C. x = 1
  • D. y = 1
Q. What is the band gap energy of a typical semiconductor?
  • A. 0 eV
  • B. 1-3 eV
  • C. 5 eV
  • D. 10 eV
Q. What is the band gap energy of a typical silicon semiconductor?
  • A. 0.1 eV
  • B. 1.1 eV
  • C. 2.0 eV
  • D. 3.5 eV
Q. What is the band gap energy of silicon at room temperature?
  • A. 0.1 eV
  • B. 1.1 eV
  • C. 2.0 eV
  • D. 3.5 eV
Q. What is the bandwidth of a signal that has a frequency range from 300 Hz to 3 kHz?
  • A. 2.7 kHz
  • B. 3.3 kHz
  • C. 2.4 kHz
  • D. 3.0 kHz
Q. What is the bandwidth of a signal that occupies a frequency range from 1 kHz to 3 kHz?
  • A. 1 kHz
  • B. 2 kHz
  • C. 3 kHz
  • D. 4 kHz
Q. What is the bandwidth of a signal that occupies a frequency range from 300 Hz to 3 kHz?
  • A. 2.7 kHz
  • B. 3.3 kHz
  • C. 2.4 kHz
  • D. 3.0 kHz
Q. What is the basic building block of proteins?
  • A. Nucleotides
  • B. Fatty acids
  • C. Amino acids
  • D. Monosaccharides
Q. What is the basic structural unit of proteins?
  • A. Nucleotide
  • B. Monosaccharide
  • C. Amino acid
  • D. Fatty acid
Q. What is the basic unit of nucleic acids?
  • A. Amino acid
  • B. Nucleotide
  • C. Monosaccharide
  • D. Fatty acid
Q. What is the basic unit of proteins?
  • A. Nucleotide
  • B. Monosaccharide
  • C. Amino acid
  • D. Fatty acid
Q. What is the binding energy of a nucleus?
  • A. Energy required to remove a nucleon
  • B. Energy released during nuclear fusion
  • C. Energy required to split the nucleus
  • D. Energy required to form the nucleus from its constituents
Q. What is the binding energy per nucleon for a stable nucleus?
  • A. Less than 1 MeV
  • B. About 8 MeV
  • C. More than 10 MeV
  • D. Zero
Q. What is the boiling point elevation of a solution containing 1 mol of NaCl in 1 kg of water? (K_b for water = 0.512 °C kg/mol)
  • A. 0.512 °C
  • B. 1.024 °C
  • C. 1.536 °C
  • D. 2.048 °C
Q. What is the boiling point of a liquid?
  • A. The temperature at which vapor pressure equals atmospheric pressure
  • B. The temperature at which a liquid freezes
  • C. The temperature at which a liquid evaporates
  • D. The temperature at which a liquid condenses
Q. What is the boiling point of a solution containing 0.5 mol of KCl in 1 kg of water? (K_b for water = 0.512 °C kg/mol)
  • A. 1.024 °C
  • B. 0.512 °C
  • C. 1.536 °C
  • D. 2.048 °C
Q. What is the boiling point trend among alcohols, ethers, and alkanes?
  • A. Alcohols > Ethers > Alkanes
  • B. Ethers > Alcohols > Alkanes
  • C. Alkanes > Ethers > Alcohols
  • D. All have the same boiling point
Q. What is the bond angle around the carbon atoms in an alkyne?
  • A. 120 degrees
  • B. 180 degrees
  • C. 109.5 degrees
  • D. 90 degrees
Q. What is the bond angle in a methane (CH4) molecule?
  • A. 90 degrees
  • B. 109.5 degrees
  • C. 120 degrees
  • D. 180 degrees
Q. What is the bond angle in a tetrahedral molecule?
  • A. 90 degrees
  • B. 120 degrees
  • C. 109.5 degrees
  • D. 180 degrees
Q. What is the bond angle in a trigonal planar molecule?
  • A. 120 degrees
  • B. 109.5 degrees
  • C. 180 degrees
  • D. 90 degrees
Q. What is the bond angle in a water molecule (H2O) according to VSEPR theory?
  • A. 120 degrees
  • B. 109.5 degrees
  • C. 104.5 degrees
  • D. 90 degrees
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