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 the correct indirect speech for: 'She said, I am studying.'?
A.
She said that she was studying.
B.
She said that she is studying.
C.
She said that she studies.
D.
She said that she had studied.
Show solution
Solution
Present continuous 'am studying' changes to past continuous 'was studying'.
Correct Answer:
A
— She said that she was studying.
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Q. Which of the following is the correct indirect speech for: 'She said, I can help you.'?
A.
She said that she could help you.
B.
She said that she can help you.
C.
She said she helps you.
D.
She said she was helping you.
Show solution
Solution
In indirect speech, 'can' changes to 'could'.
Correct Answer:
A
— She said that she could help you.
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Q. Which of the following is the correct indirect speech for: 'She said, I will call you tomorrow.'?
A.
She said that she would call me tomorrow.
B.
She said that she will call me tomorrow.
C.
She said that she called me tomorrow.
D.
She said that she is calling me tomorrow.
Show solution
Solution
In indirect speech, 'will' changes to 'would'.
Correct Answer:
A
— She said that she would call me tomorrow.
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Q. Which of the following is the correct indirect speech for: 'They said, We are going to the concert.'?
A.
They said that they were going to the concert.
B.
They said that they are going to the concert.
C.
They said that they go to the concert.
D.
They said that they had gone to the concert.
Show solution
Solution
In indirect speech, the present continuous 'are going' changes to the past continuous 'were going'.
Correct Answer:
A
— They said that they were going to the concert.
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Q. Which of the following is the correct indirect speech for: 'They said, We will finish the project.'?
A.
They said that they would finish the project.
B.
They said that they will finish the project.
C.
They said that they finished the project.
D.
They said that they are finishing the project.
Show solution
Solution
In indirect speech, 'will' changes to 'would'.
Correct Answer:
A
— They said that they would finish the project.
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Q. Which of the following is the correct interpretation of log_5(1)?
A.
0
B.
1
C.
5
D.
Undefined
Show solution
Solution
log_5(1) = 0 because any number raised to the power of 0 equals 1.
Correct Answer:
A
— 0
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Q. Which of the following is the correct IUPAC name for C2H5-CO-CH3?
A.
2-Pentanone
B.
3-Pentanone
C.
Butan-2-one
D.
Butan-3-one
Show solution
Solution
The compound is a ketone with a four-carbon chain, and the carbonyl group is on the second carbon, hence it is Butan-2-one.
Correct Answer:
C
— Butan-2-one
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Q. Which of the following is the correct IUPAC name for C3H6?
A.
Propene
B.
Cyclopropane
C.
Propane
D.
1-Propyn
Show solution
Solution
C3H6 corresponds to propene, which is an alkene with a double bond.
Correct Answer:
A
— Propene
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Q. Which of the following is the correct IUPAC name for C3H7-COOH?
A.
Propanoic acid
B.
Butanoic acid
C.
Pentanoic acid
D.
Hexanoic acid
Show solution
Solution
The compound has 3 carbons in the longest chain and a carboxylic acid group, hence it is Propanoic acid.
Correct Answer:
A
— Propanoic acid
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Q. Which of the following is the correct IUPAC name for C5H10?
A.
Pentane
B.
Cyclopentane
C.
1-Pentene
D.
2-Pentene
Show solution
Solution
C5H10 corresponds to pentane, which is a straight-chain alkane with 5 carbon atoms.
Correct Answer:
A
— Pentane
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Q. Which of the following is the correct IUPAC name for C6H12?
A.
Hexane
B.
Cyclohexane
C.
2-Hexene
D.
1-Hexyne
Show solution
Solution
C6H12 is a straight-chain alkane with 6 carbons, which is named Hexane.
Correct Answer:
A
— Hexane
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Q. Which of the following is the correct IUPAC name for C6H5-CH2-CH2-COOH?
A.
Phenylbutanoic acid
B.
Butylbenzoic acid
C.
Benzoic acid
D.
Phenylpropanoic acid
Show solution
Solution
The compound has a phenyl group attached to a butanoic acid structure, making it Phenylbutanoic acid.
Correct Answer:
A
— Phenylbutanoic acid
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Q. Which of the following is the correct IUPAC name for C6H5-CH2-CH3?
A.
Ethylbenzene
B.
Phenylpropane
C.
Benzyl ethane
D.
Benzene ethyl
Show solution
Solution
The compound has a phenyl group attached to an ethyl group, making it Ethylbenzene.
Correct Answer:
A
— Ethylbenzene
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Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(CH3)-CH2-CH3?
A.
2-Pentene
B.
3-Pentene
C.
2-Methylbutane
D.
3-Methylbutane
Show solution
Solution
The longest carbon chain has 5 carbons, and there is a methyl group on the second carbon, making it 2-Methylbutane.
Correct Answer:
C
— 2-Methylbutane
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Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(CH3)-OH?
A.
2-Methylpropan-1-ol
B.
3-Methylbutan-1-ol
C.
2-Methylbutan-1-ol
D.
3-Methylpropan-1-ol
Show solution
Solution
The longest chain has four carbons, and the hydroxyl group is on the first carbon, with a methyl group on the second carbon, making it 2-Methylbutan-1-ol.
Correct Answer:
C
— 2-Methylbutan-1-ol
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Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(OH)-CH3? (2020)
A.
2-butanol
B.
1-butanol
C.
3-butanol
D.
2-pentanol
Show solution
Solution
The compound CH3-CH2-CH(OH)-CH3 is 2-butanol, as the hydroxyl group is on the second carbon.
Correct Answer:
A
— 2-butanol
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Q. Which of the following is the correct IUPAC name for CH3CH2CH2OH?
A.
Propan-1-ol
B.
Butan-1-ol
C.
Butan-2-ol
D.
Pentan-1-ol
Show solution
Solution
The correct IUPAC name for CH3CH2CH2OH is Butan-1-ol, as it has four carbon atoms with the hydroxyl group on the first carbon.
Correct Answer:
B
— Butan-1-ol
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Q. Which of the following is the correct IUPAC name for CH3CHO?
A.
Ethanal
B.
Propanal
C.
Butanal
D.
Methanal
Show solution
Solution
The correct IUPAC name for CH3CHO is Ethanal.
Correct Answer:
A
— Ethanal
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Q. Which of the following is the correct IUPAC name for CH3COOH?
A.
Methanoic acid
B.
Ethanoic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
The compound CH3COOH is known as Ethanoic acid, which is the IUPAC name for acetic acid.
Correct Answer:
B
— Ethanoic acid
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Q. Which of the following is the correct IUPAC name for the compound C2H5-CHO?
A.
Ethanal
B.
Propanoic acid
C.
Acetaldehyde
D.
Ethyl aldehyde
Show solution
Solution
The compound is an aldehyde with two carbons, hence the IUPAC name is Ethanal.
Correct Answer:
A
— Ethanal
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Q. Which of the following is the correct IUPAC name for the compound C3H6O?
A.
Propylene oxide
B.
Acetone
C.
Propanal
D.
Cyclopropanol
Show solution
Solution
C3H6O can be identified as Propanal, which is an aldehyde with three carbons.
Correct Answer:
C
— Propanal
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Q. Which of the following is the correct IUPAC name for the compound CH3-CH(CH3)-C(CH3)2-COOH?
A.
2-Hydroxy-3-methylpentanoic acid
B.
3-Methyl-2-pentanoic acid
C.
2-Methyl-3-pentanoic acid
D.
3-Hydroxy-2-methylpentanoic acid
Show solution
Solution
The longest chain has 5 carbons, with a methyl group on the second carbon and a carboxylic acid on the first, making it 3-Methyl-2-pentanoic acid.
Correct Answer:
B
— 3-Methyl-2-pentanoic acid
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Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH(CH3)-OH?
A.
2-Propanol
B.
1-Butanol
C.
2-Butanol
D.
3-Butanol
Show solution
Solution
The compound has a hydroxyl group on the second carbon of a four-carbon chain, making it 2-Butanol.
Correct Answer:
C
— 2-Butanol
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Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH(CH3)-C≡C-H?
A.
3-Methyl-1-pentyne
B.
2-Methyl-1-pentyne
C.
1-Methyl-2-pentyne
D.
1-Methyl-3-pentyne
Show solution
Solution
The compound has a triple bond and the longest chain has five carbons, making it 3-Methyl-1-pentyne.
Correct Answer:
A
— 3-Methyl-1-pentyne
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Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CHO?
A.
Butanal
B.
Propionaldehyde
C.
Pentanal
D.
Ethanal
Show solution
Solution
The compound has a four-carbon chain with an aldehyde functional group, so it is named Butanal.
Correct Answer:
A
— Butanal
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Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CH2-COOH?
A.
Pentanoic acid
B.
Butanoic acid
C.
Hexanoic acid
D.
Heptanoic acid
Show solution
Solution
The compound is a carboxylic acid with 5 carbons, named Pentanoic acid.
Correct Answer:
A
— Pentanoic acid
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Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CH2-COOH?
A.
Phenylbutanoic acid
B.
Butylphenyl acid
C.
Benzoic acid
D.
Phenylpropanoic acid
Show solution
Solution
The compound has a phenyl group attached to a butanoic acid, making it Phenylbutanoic acid.
Correct Answer:
A
— Phenylbutanoic acid
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Q. Which of the following is the correct IUPAC name for the compound with the formula C2H5-CHO?
A.
Ethanal
B.
Propionaldehyde
C.
Acetaldehyde
D.
Butanal
Show solution
Solution
The compound is an aldehyde with two carbons, and its IUPAC name is Acetaldehyde.
Correct Answer:
C
— Acetaldehyde
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Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CHO?
A.
Benzaldehyde
B.
Benzylaldehyde
C.
Phenylacetaldehyde
D.
Phenylaldehyde
Show solution
Solution
The compound has a benzyl group attached to an aldehyde, making it Benzylaldehyde.
Correct Answer:
B
— Benzylaldehyde
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Q. Which of the following is the correct IUPAC name for the compound with the formula C3H7-COOH?
A.
Propanoic acid
B.
Butanoic acid
C.
Acetic acid
D.
Isobutyric acid
Show solution
Solution
The compound has three carbons in the longest chain and a carboxylic acid functional group, making it Propanoic acid.
Correct Answer:
A
— Propanoic acid
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