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 product of the oxidation of a primary alcohol?
  • A. Aldehyde
  • B. Ketone
  • C. Carboxylic acid
  • D. Alcohol
Q. What is the main product of the reaction between an alcohol and a carboxylic acid?
  • A. Ester
  • B. Ether
  • C. Aldehyde
  • D. Ketone
Q. What is the main product of the reaction between ethene and bromine?
  • A. Bromobutane
  • B. 1,2-Dibromoethane
  • C. Bromoethane
  • D. Ethyl bromide
Q. What is the main product of the reaction between hydrogen and oxygen?
  • A. Ozone
  • B. Water
  • C. Hydrogen peroxide
  • D. Hydrochloric acid
Q. What is the main product of the reaction between sodium and chlorine?
  • A. NaCl
  • B. NaCl2
  • C. Na2Cl
  • D. Na2Cl2
Q. What is the main product of the reaction of 1-chloropropane with magnesium in dry ether?
  • A. Propane
  • B. Grignard reagent
  • C. Propyl chloride
  • D. Magnesium chloride
Q. What is the main product of the reaction of benzene with bromine in the presence of FeBr3?
  • A. Bromobenzene
  • B. Benzyl bromide
  • C. Bromobenzyl alcohol
  • D. Benzene remains unchanged
Q. What is the main product of the reaction of ethene with ozone followed by zinc reduction?
  • A. Acetaldehyde
  • B. Ethylene glycol
  • C. Acetic acid
  • D. Ethane
Q. What is the main product of the thermal decomposition of calcium carbonate?
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Carbon dioxide
  • D. Calcium bicarbonate
Q. What is the main product when 1-bromopropane is treated with aqueous KOH?
  • A. Propene
  • B. 1-propanol
  • C. 2-propanol
  • D. No reaction
Q. What is the main product when 1-bromopropane reacts with magnesium in dry ether?
  • A. Propylmagnesium bromide
  • B. Propane
  • C. Magnesium bromide
  • D. Propan-1-ol
Q. What is the main product when 1-butanol is oxidized?
  • A. Butanal
  • B. Butanoic acid
  • C. Butene
  • D. Butyne
Q. What is the main product when 1-butene undergoes hydroboration-oxidation?
  • A. Butanol
  • B. Butanal
  • C. Butyric acid
  • D. Butene
Q. What is the main product when 1-butyne is treated with HBr?
  • A. 1-bromobutane
  • B. 2-bromobutane
  • C. 1,2-dibromobutane
  • D. No reaction
Q. What is the main product when 1-chloropropane is treated with magnesium in dry ether?
  • A. Propane
  • B. Propylmagnesium chloride
  • C. Cyclopropane
  • D. Chloromagnesium propyl
Q. What is the main product when 2-butyne is treated with excess H2 in the presence of a catalyst?
  • A. 1-butyne
  • B. Butane
  • C. 2-butyne
  • D. Ethyne
Q. What is the main product when 2-butyne undergoes hydroboration-oxidation?
  • A. Butanol
  • B. Butanal
  • C. Butyric acid
  • D. Butene
Q. What is the main product when a carboxylic acid is reduced?
  • A. Alcohol
  • B. Aldehyde
  • C. Ketone
  • D. Alkane
Q. What is the main product when an alcohol is dehydrated?
  • A. Alkene
  • B. Alkane
  • C. Ether
  • D. Aldehyde
Q. What is the main product when an alcohol is oxidized with potassium dichromate?
  • A. Aldehyde
  • B. Ketone
  • C. Carboxylic acid
  • D. All of the above
Q. What is the main product when an aldehyde reacts with a Grignard reagent?
  • A. Alcohol
  • B. Ketone
  • C. Carboxylic acid
  • D. Alkane
Q. What is the main product when an amine is treated with nitrous acid?
  • A. Diazonium salt
  • B. Alcohol
  • C. Aldehyde
  • D. Ketone
Q. What is the main product when an amine reacts with nitrous acid?
  • A. Diazonium salt
  • B. Alcohol
  • C. Aldehyde
  • D. Amide
Q. What is the main product when benzaldehyde is treated with Grignard reagent followed by hydrolysis?
  • A. Benzyl alcohol
  • B. Benzyl ketone
  • C. Benzyl aldehyde
  • D. Benzyl ether
Q. What is the main product when benzene reacts with chlorine in the presence of FeCl3?
  • A. Chlorobenzene
  • B. Benzyl chloride
  • C. Benzene-1,2-dichloride
  • D. Phenol
Q. What is the main product when benzoic acid is treated with thionyl chloride?
  • A. Benzoyl chloride
  • B. Benzyl alcohol
  • C. Benzene
  • D. Benzoate salt
Q. What is the main product when butanoic acid is treated with thionyl chloride?
  • A. Butyl chloride
  • B. Butanoate
  • C. Butanoyl chloride
  • D. Butanol
Q. What is the main product when chlorobenzene is treated with sodium hydroxide at high temperature?
  • A. Phenol
  • B. Benzene
  • C. Chlorobenzene remains unchanged
  • D. Sodium phenoxide
Q. What is the main product when ethanol is dehydrated?
  • A. Ethylene
  • B. Acetaldehyde
  • C. Diethyl ether
  • D. Ethane
Q. What is the main product when ethylamine is treated with nitrous acid?
  • A. Ethyl alcohol
  • B. Ethyl diazonium salt
  • C. Ethylamine hydrochloride
  • D. No reaction
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