Major Competitive Exams

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Major Competitive Exams

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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!

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Q. What is the product of the reaction between sodium (Na) and chlorine (Cl2)? (2019)

A. NaCl
B. NaCl2
C. Na2Cl
D. Na2Cl2

Solution

Sodium reacts with chlorine to form sodium chloride (NaCl).

Correct Answer: A — NaCl

Q. What is the product of the reaction of 1-butyne with HBr?

A. 1-bromobutane
B. 2-bromobutane
C. Butane
D. Butyne

Solution

The reaction of 1-butyne with HBr leads to the formation of 2-bromobutane due to Markovnikov's rule.

Correct Answer: B — 2-bromobutane

Q. What is the product of the reaction of an alcohol with a carboxylic acid?

A. Ester
B. Ether
C. Aldehyde
D. Ketone

Solution

The reaction of an alcohol with a carboxylic acid produces an ester through a process called esterification.

Correct Answer: A — Ester

Q. What is the product of the reaction of chlorobenzene with sodium hydroxide at high temperature?

A. Phenol
B. Benzene
C. Chlorobenzene
D. Sodium chloride

Solution

The reaction of chlorobenzene with sodium hydroxide at high temperature leads to the formation of phenol through nucleophilic aromatic substitution.

Correct Answer: A — Phenol

Q. What is the product of the reaction of ethylene with chlorine?

A. Ethyl chloride
B. 1,2-dichloroethane
C. Chloroethane
D. Ethylene dichloride

Solution

The reaction of ethylene with chlorine results in the formation of 1,2-dichloroethane through an electrophilic addition mechanism.

Correct Answer: B — 1,2-dichloroethane

Q. What is the product of the reaction of propene with HBr?

A. 1-Bromopropane
B. 2-Bromopropane
C. Propyl bromide
D. Bromopropene

Solution

The reaction follows Markovnikov's rule, leading to the formation of 2-Bromopropane.

Correct Answer: B — 2-Bromopropane

Q. What is the product of the reduction of Cr2O7^2- in acidic medium?

A. CrO4^2-
B. Cr^3+
C. CrO3
D. CrO2

Solution

In acidic medium, Cr2O7^2- is reduced to Cr^3+.

Correct Answer: B — Cr^3+

Q. What is the product of the reduction of Cr2O7²⁻ in acidic medium? (2019)

A. CrO4²⁻
B. Cr³⁺
C. Cr²O3
D. CrO2

Solution

In acidic medium, Cr2O7²⁻ is reduced to Cr³⁺.

Correct Answer: B — Cr³⁺

Q. What is the product of the reduction of permanganate ion (MnO4-) in acidic medium? (2019)

A. MnO2
B. Mn2O3
C. Mn2+
D. MnO4

Solution

In acidic medium, the permanganate ion (MnO4-) is reduced to manganese ion (Mn2+).

Correct Answer: C — Mn2+

Q. What is the product of the roots of the equation 2x^2 + 3x - 5 = 0?

A. -5/2
B. 5/2
C. 2/5
D. -2/5

Solution

The product of the roots is c/a = -5/2.

Correct Answer: A — -5/2

Q. What is the product of the roots of the equation 2x^2 - 3x + 1 = 0?

A. 1/2
B. 1
C. 3/2
D. 2

Solution

Using Vieta's formulas, the product of the roots is 1/2 (c/a = 1/2).

Correct Answer: A — 1/2

Q. What is the product of the roots of the equation 2x^2 - 8x + 6 = 0?

A. 3
B. 2
C. 1
D. 4

Solution

The product of the roots of the equation ax^2 + bx + c = 0 is given by c/a. Here, c = 6 and a = 2, so the product is 6/2 = 3.

Correct Answer: A — 3

Q. What is the product of the roots of the equation 2x² - 8x + 6 = 0? (2022)

A. 3
B. 2
C. 1.5
D. 4

Solution

The product of the roots is given by c/a = 6/2 = 3.

Correct Answer: A — 3

Q. What is the product of the roots of the equation 3x^2 + 6x + 2 = 0?

A. 2/3
B. 1/3
C. 1/2
D. 1/6

Solution

The product of the roots is given by c/a = 2/3.

Correct Answer: B — 1/3

Q. What is the product of the roots of the equation 3x^2 - 12x + 9 = 0?

A. 1
B. 3
C. 4
D. 9

Solution

The product of the roots is given by c/a = 9/3 = 3.

Correct Answer: C — 4

Q. What is the product of the roots of the equation 3x² - 12x + 9 = 0? (2022)

A. 1
B. 3
C. 4
D. 9

Solution

The product of the roots is given by c/a = 9/3 = 3.

Correct Answer: B — 3

Q. What is the product of the roots of the equation 3x² - 6x + 2 = 0? (2023)

A. 1/3
B. 2/3
C. 1/2
D. 1

Solution

The product of the roots is given by c/a = 2/3.

Correct Answer: B — 2/3

Q. What is the product of the roots of the equation x^2 - 5x + 6 = 0? (2014) 2014

A. 6
B. 5
C. 3
D. 2

Solution

The product of the roots is c/a = 6/1 = 6.

Correct Answer: A — 6

Q. What is the product of the roots of the equation x^2 - 6x + 8 = 0?

A. 6
B. 8
C. 10
D. 12

Solution

The product of the roots is given by c/a = 8/1 = 8.

Correct Answer: B — 8

Q. What is the product of the roots of the equation x^2 - 8x + 15 = 0?

A. 15
B. 8
C. 7
D. 6

Solution

The product of the roots is given by c/a = 15/1 = 15.

Correct Answer: A — 15

Q. What is the product of the roots of the equation x² + 5x + 6 = 0? (2022)

A. 6
B. 5
C. 4
D. 3

Solution

The product of the roots is given by c/a = 6/1 = 6.

Correct Answer: A — 6

Q. What is the product of the roots of the equation x² - 10x + 24 = 0? (2021)

A. 24
B. 10
C. 16
D. 14

Solution

The product of the roots is given by c/a = 24/1 = 24.

Correct Answer: A — 24

Q. What is the product of the roots of the equation x² - 4x + 3 = 0? (2021)

A. 3
B. 4
C. 2
D. 1

Solution

The product of the roots is given by c/a = 3/1 = 3.

Correct Answer: A — 3

Q. What is the product of the roots of the equation x² - 7x + 10 = 0? (2023)

A. 10
B. 7
C. 5
D. 3

Solution

The product of the roots is given by c/a = 10/1 = 10.

Correct Answer: A — 10

Q. What is the product of the roots of the equation x² - 8x + 15 = 0? (2022)

A. 15
B. 8
C. 7
D. 6

Solution

The product of the roots is given by c/a = 15/1 = 15.

Correct Answer: A — 15

Q. What is the product of the roots of the polynomial P(x) = x^2 - 7x + 10?

A. 10
B. 7
C. 5
D. 0

Solution

The product of the roots of a quadratic polynomial ax^2 + bx + c is given by c/a, which is 10/1 = 10.

Correct Answer: A — 10

Q. What is the product of the roots of the quadratic equation 2x² + 3x - 5 = 0?

A. -2.5
B. 2.5
C. -1.5
D. 1.5

Solution

The product of the roots is given by c/a. Here, -5/2 = -2.5.

Correct Answer: A — -2.5

Q. What is the product of the roots of the quadratic equation 3x^2 - 12x + 9 = 0? (2023)

A. 1
B. 2
C. 3
D. 4

Solution

The product of the roots is given by c/a = 9/3 = 3.

Correct Answer: A — 1

Q. What is the product of the roots of the quadratic equation x^2 - 7x + 10 = 0? (2023)

A. 10
B. 7
C. 5
D. 3

Solution

Using Vieta's formulas, the product of the roots is c/a = 10/1 = 10.

Correct Answer: A — 10

Q. What is the product of the roots of the quadratic equation x² - 5x + 6 = 0? (2019)

A. 6
B. 5
C. 4
D. 3

Solution

The product of the roots of ax² + bx + c = 0 is c/a. Here, product = 6/1 = 6.

Correct Answer: A — 6

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