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 general formula for alkenes?
  • A. C_nH_(2n)
  • B. C_nH_(2n+2)
  • C. C_nH_(2n-2)
  • D. C_nH_(2n+1)
Q. What is the general formula for alkynes?
  • A. C_nH_(2n+2)
  • B. C_nH_(2n)
  • C. C_nH_(2n-2)
  • D. C_nH_(2n-1)
Q. What is the general formula for carbohydrates?
  • A. C_n(H2O)_n
  • B. C_nH_nO_n
  • C. C_nH_2nO_n
  • D. C_nH_2O_n
Q. What is the general formula for carboxylic acids?
  • A. C_nH_2nO_2
  • B. C_nH_2n+1COOH
  • C. C_nH_2nO
  • D. C_nH_2n+2O
Q. What is the general formula for cycloalkanes?
  • A. CnH2n
  • B. CnH2n+2
  • C. CnH2n-2
  • D. CnH2n-4
Q. What is the general formula for ketones?
  • A. CnH2nO
  • B. CnH2n+2O
  • C. CnH2n-2O
  • D. CnH2nO2
Q. What is the general solution of the differential equation dy/dx = 3y?
  • A. y = Ce^(3x)
  • B. y = Ce^(-3x)
  • C. y = 3x + C
  • D. y = Cx^3
Q. What is the general trend in the melting points of alkali metals as you move down the group?
  • A. They increase
  • B. They decrease
  • C. They remain constant
  • D. They fluctuate
Q. What is the general trend of ionization energy across a period?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Increases then decreases
Q. What is the geometry of a molecule with sp3d hybridization?
  • A. Linear
  • B. Trigonal planar
  • C. Tetrahedral
  • D. Trigonal bipyramidal
Q. What is the geometry of the complex ion [Ag(NH3)2]+?
  • A. Linear
  • B. Tetrahedral
  • C. Octahedral
  • D. Square planar
Q. What is the geometry of the complex ion [Cu(NH3)4]2+?
  • A. Tetrahedral
  • B. Square planar
  • C. Octahedral
  • D. Trigonal bipyramidal
Q. What is the geometry of the complex ion [Ni(CN)4]2-?
  • A. Tetrahedral
  • B. Square planar
  • C. Octahedral
  • D. Trigonal bipyramidal
Q. What is the geometry of the complex [Ag(NH3)2]+?
  • A. Linear
  • B. Tetrahedral
  • C. Square Planar
  • D. Octahedral
Q. What is the geometry of [Ag(NH3)2]+?
  • A. Linear
  • B. Tetrahedral
  • C. Octahedral
  • D. Square planar
Q. What is the Gibbs Free Energy change (ΔG) at equilibrium?
  • A. ΔG < 0
  • B. ΔG = 0
  • C. ΔG > 0
  • D. ΔG = ΔH - TΔS
Q. What is the Gibbs free energy change for a spontaneous process?
  • A. Positive
  • B. Negative
  • C. Zero
  • D. Undefined
Q. What is the gravitational field strength at a distance 'R' from the center of a planet of radius 'R' and uniform density?
  • A. 0
  • B. g
  • C. g/2
  • D. g/4
Q. What is the gravitational field strength at a distance of 3R from the center of a planet of mass M and radius R?
  • A. G*M/R²
  • B. G*M/(3R)²
  • C. G*M/(9R²)
  • D. G*M/(6R²)
Q. What is the gravitational field strength at a distance of 3R from the center of the Earth? (R = radius of Earth)
  • A. g/9
  • B. g/3
  • C. g/6
  • D. g/12
Q. What is the gravitational field strength at a distance of 3R from the center of a planet of radius R?
  • A. G/9
  • B. G/3
  • C. G
  • D. 3G
Q. What is the gravitational field strength at a distance of 4R from the center of a planet of radius R?
  • A. G/16
  • B. G/4
  • C. G/2
  • D. G
Q. What is the gravitational field strength at a distance of 4R from the center of a planet of mass M and radius R?
  • A. GM/R²
  • B. GM/4R²
  • C. GM/16R²
  • D. GM/8R²
Q. What is the gravitational field strength at the surface of a planet of mass M and radius R?
  • A. GM/R^2
  • B. 2GM/R^2
  • C. GM/R
  • D. G/R^2
Q. What is the gravitational field strength at the surface of a planet with mass 6 x 10^24 kg and radius 6.4 x 10^6 m?
  • A. 9.8 N/kg
  • B. 6.67 N/kg
  • C. 3.2 N/kg
  • D. 12.5 N/kg
Q. What is the gravitational field strength at the surface of the Earth?
  • A. 9.8 N/kg
  • B. 10 N/kg
  • C. 11 N/kg
  • D. 12 N/kg
Q. What is the gravitational force acting on a 1 kg mass at the surface of the Earth? (g = 9.8 m/s²)
  • A. 9.8 N
  • B. 19.6 N
  • C. 4.9 N
  • D. 0 N
Q. What is the gravitational force acting on a 10 kg mass at the surface of the Earth?
  • A. 98 N
  • B. 10 N
  • C. 100 N
  • D. 9.8 N
Q. What is the gravitational force acting on a 10 kg object at the surface of the Earth?
  • A. 98 N
  • B. 100 N
  • C. 10 N
  • D. 9.8 N
Q. What is the gravitational force acting on a 10 kg object on the surface of the Earth? (g = 9.8 m/s²)
  • A. 9.8 N
  • B. 19.6 N
  • C. 29.4 N
  • D. 39.2 N
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