Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. Which of the following is a characteristic of unsaturated hydrocarbons?
A.
Only single bonds
B.
Contains double or triple bonds
C.
Higher boiling points
D.
Less reactive
Show solution
Solution
Unsaturated hydrocarbons contain double or triple bonds, making them more reactive than saturated hydrocarbons.
Correct Answer:
B
— Contains double or triple bonds
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Q. Which of the following is a characteristic property of alkaline earth metals?
A.
They are highly reactive with water
B.
They form basic oxides
C.
They have low melting points
D.
They are gases at room temperature
Show solution
Solution
Alkaline earth metals typically form basic oxides.
Correct Answer:
B
— They form basic oxides
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Q. Which of the following is a characteristic property of alkynes?
A.
Higher boiling points than alkenes
B.
Lower reactivity than alkenes
C.
Inability to undergo addition reactions
D.
Higher density than alkanes
Show solution
Solution
Alkynes generally have higher boiling points than alkenes due to stronger intermolecular forces.
Correct Answer:
A
— Higher boiling points than alkenes
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Q. Which of the following is a characteristic property of carboxylic acids?
A.
High boiling points
B.
Low solubility in water
C.
Sweet smell
D.
Basic nature
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Solution
Carboxylic acids have high boiling points due to hydrogen bonding.
Correct Answer:
A
— High boiling points
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Q. Which of the following is a characteristic property of d-block elements?
A.
High electronegativity
B.
Formation of colored compounds
C.
Low melting points
D.
Non-conductivity
Show solution
Solution
D-block elements typically form colored compounds due to d-d electron transitions.
Correct Answer:
B
— Formation of colored compounds
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Q. Which of the following is a characteristic property of ethers? (2019)
A.
High boiling point
B.
Solubility in water
C.
Low reactivity
D.
Acidic nature
Show solution
Solution
Ethers are generally low in reactivity compared to alcohols and phenols, making them stable compounds.
Correct Answer:
C
— Low reactivity
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Q. Which of the following is a characteristic property of f-block elements?
A.
High electronegativity
B.
Formation of colored ions
C.
Low density
D.
High ionization energy
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Solution
F-block elements typically form colored ions due to the presence of unpaired electrons in f-orbitals.
Correct Answer:
B
— Formation of colored ions
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Q. Which of the following is a characteristic property of group 13 elements? (2019)
A.
Forming covalent compounds
B.
High melting points
C.
Good conductors of electricity
D.
Forming ionic compounds
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Solution
Group 13 elements typically form covalent compounds due to their tendency to share electrons.
Correct Answer:
A
— Forming covalent compounds
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Q. Which of the following is a characteristic property of halogens? (2020)
A.
Good conductors of electricity
B.
High melting points
C.
Diatomic molecules
D.
Metallic luster
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Solution
Halogens exist as diatomic molecules (e.g., Cl2, F2) in their elemental form.
Correct Answer:
C
— Diatomic molecules
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Q. Which of the following is a characteristic property of lanthanides?
A.
High density
B.
Low melting points
C.
Non-magnetic
D.
High ionization energy
Show solution
Solution
Lanthanides are known for their high density, which is a characteristic property of these elements.
Correct Answer:
A
— High density
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Q. Which of the following is a characteristic property of noble gases? (2019)
A.
High reactivity
B.
Colorless and odorless
C.
Forming ionic bonds
D.
High boiling points
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Solution
Noble gases are colorless and odorless under standard conditions.
Correct Answer:
B
— Colorless and odorless
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Q. Which of the following is a characteristic property of p-block elements?
A.
High melting points
B.
Good conductors of electricity
C.
Form covalent bonds
D.
High density
Show solution
Solution
P-block elements typically form covalent bonds due to their electronegativity and valence electron configuration.
Correct Answer:
C
— Form covalent bonds
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Q. Which of the following is a characteristic property of phenols?
A.
Basicity
B.
Acidity
C.
Neutrality
D.
Inertness
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Solution
Phenols are weakly acidic due to the presence of the hydroxyl group attached to the aromatic ring.
Correct Answer:
B
— Acidity
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Q. Which of the following is a characteristic property of s-block elements?
A.
Form covalent bonds
B.
Form ionic bonds
C.
Have high electronegativity
D.
Are gases at room temperature
Show solution
Solution
S-block elements typically form ionic bonds due to their tendency to lose electrons.
Correct Answer:
B
— Form ionic bonds
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Q. Which of the following is a characteristic property of transition metals?
A.
High electronegativity
B.
Variable oxidation states
C.
Low melting points
D.
Non-conductivity
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Solution
Transition metals exhibit variable oxidation states due to the involvement of d-orbitals in bonding.
Correct Answer:
B
— Variable oxidation states
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Q. Which of the following is a characteristic reaction of alcohols?
A.
Nitration
B.
Esterification
C.
Halogenation
D.
Oxidation
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Solution
Alcohols undergo esterification when they react with carboxylic acids to form esters.
Correct Answer:
B
— Esterification
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Q. Which of the following is a characteristic reaction of aldehydes?
A.
Reduction to alcohols
B.
Formation of esters
C.
Dehydration
D.
Nitration
Show solution
Solution
Aldehydes can be reduced to alcohols, which is a characteristic reaction of this functional group.
Correct Answer:
A
— Reduction to alcohols
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Q. Which of the following is a characteristic reaction of alkanes?
A.
Nucleophilic substitution
B.
Electrophilic addition
C.
Free radical halogenation
D.
Hydrogenation
Show solution
Solution
Free radical halogenation is a characteristic reaction of alkanes.
Correct Answer:
C
— Free radical halogenation
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Q. Which of the following is a characteristic reaction of alkenes?
A.
Hydrogenation
B.
Hydrolysis
C.
Oxidation
D.
Reduction
Show solution
Solution
Alkenes undergo hydrogenation, where they react with hydrogen in the presence of a catalyst.
Correct Answer:
A
— Hydrogenation
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Q. Which of the following is a characteristic reaction of amines?
A.
Nitration
B.
Acylation
C.
Halogenation
D.
Oxidation
Show solution
Solution
Acylation is a characteristic reaction of amines, where they react with acyl chlorides to form amides.
Correct Answer:
B
— Acylation
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Q. Which of the following is a characteristic reaction of carboxylic acids?
A.
Formation of esters
B.
Formation of amides
C.
Decarboxylation
D.
All of the above
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Solution
Carboxylic acids can undergo esterification, amide formation, and decarboxylation, making 'All of the above' correct.
Correct Answer:
D
— All of the above
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Q. Which of the following is a characteristic reaction of ethers?
A.
Hydrolysis
B.
Oxidation
C.
Nucleophilic substitution
D.
Dehydration
Show solution
Solution
Ethers undergo nucleophilic substitution reactions under strong acidic conditions.
Correct Answer:
C
— Nucleophilic substitution
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Q. Which of the following is a characteristic reaction of haloalkanes?
A.
Electrophilic addition
B.
Nucleophilic substitution
C.
Free radical substitution
D.
Hydrogenation
Show solution
Solution
Nucleophilic substitution is a characteristic reaction of haloalkanes, where a nucleophile replaces the halogen atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. Which of the following is a characteristic reaction of haloarenes?
A.
Nucleophilic substitution
B.
Electrophilic substitution
C.
Hydrogenation
D.
Dehydrohalogenation
Show solution
Solution
Haloarenes typically undergo nucleophilic substitution reactions due to the presence of the aromatic ring.
Correct Answer:
B
— Electrophilic substitution
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Q. Which of the following is a characteristic reaction of ketones?
A.
Oxidation to carboxylic acids
B.
Reduction to alcohols
C.
Formation of hemiacetals
D.
Formation of aldehydes
Show solution
Solution
Ketones can react with alcohols to form hemiacetals, which is a characteristic reaction.
Correct Answer:
C
— Formation of hemiacetals
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Q. Which of the following is a characteristic reaction of phenols?
A.
Formation of esters
B.
Formation of ethers
C.
Electrophilic substitution
D.
Reduction to alcohols
Show solution
Solution
Phenols undergo electrophilic substitution reactions due to the presence of the hydroxyl group, which activates the benzene ring.
Correct Answer:
C
— Electrophilic substitution
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Q. Which of the following is a characteristic reaction of phenols? (2021) 2021
A.
Esterification
B.
Nitration
C.
Halogenation
D.
Hydrogenation
Show solution
Solution
Phenols undergo halogenation readily due to the electron-donating effect of the hydroxyl group.
Correct Answer:
C
— Halogenation
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Q. Which of the following is a clearer version of 'The committee reached a consensus after much deliberation'? (2023)
A.
The committee agreed after a long discussion.
B.
The committee could not agree.
C.
The committee was confused.
D.
The committee met several times.
Show solution
Solution
The phrase 'reached a consensus after much deliberation' can be simplified to 'agreed after a long discussion'.
Correct Answer:
A
— The committee agreed after a long discussion.
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Q. Which of the following is a cloud storage service? (2023)
A.
Google Drive
B.
Microsoft Word
C.
Adobe Reader
D.
Notepad
Show solution
Solution
Google Drive is a cloud storage service that allows users to store files online.
Correct Answer:
A
— Google Drive
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Q. Which of the following is a colligative property?
A.
Boiling point elevation
B.
Density
C.
Viscosity
D.
Color
Show solution
Solution
Boiling point elevation is a colligative property that depends on the number of solute particles in a solution.
Correct Answer:
A
— Boiling point elevation
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