Engineering Entrance MCQ & Objective Questions
Preparing for Engineering Entrance exams is crucial for aspiring engineers in India. Mastering MCQs and objective questions not only enhances your understanding of key concepts but also boosts your confidence during exams. Regular practice with these questions helps identify important topics and improves your overall exam preparation.
What You Will Practise Here
Fundamental concepts of Physics and Mathematics
Key formulas and their applications in problem-solving
Important definitions and theorems relevant to engineering
Diagrams and graphical representations for better understanding
Conceptual questions that challenge your critical thinking
Previous years' question papers and their analysis
Time management strategies while solving MCQs
Exam Relevance
The Engineering Entrance syllabus is integral to various examinations like CBSE, State Boards, NEET, and JEE. Questions often focus on core subjects such as Physics, Chemistry, and Mathematics, with formats varying from direct MCQs to application-based problems. Understanding the common question patterns can significantly enhance your performance and help you tackle the exams with ease.
Common Mistakes Students Make
Overlooking the importance of units and dimensions in calculations
Misinterpreting questions due to lack of careful reading
Neglecting to review basic concepts before attempting advanced problems
Rushing through practice questions without thorough understanding
FAQs
Question: What are the best ways to prepare for Engineering Entrance MCQs?Answer: Focus on understanding concepts, practice regularly with objective questions, and review previous years' papers.
Question: How can I improve my speed in solving MCQs?Answer: Regular practice, time-bound mock tests, and familiarizing yourself with common question types can help improve your speed.
Start your journey towards success by solving Engineering Entrance MCQ questions today! Test your understanding and build a strong foundation for your exams.
Q. Which of the following factors does NOT affect the rate of a chemical reaction? (2021) 2021
A.
Concentration of reactants
B.
Temperature
C.
Presence of a catalyst
D.
Color of the reactants
Show solution
Solution
The color of the reactants does not affect the rate of a chemical reaction. The other factors directly influence the reaction rate.
Correct Answer:
D
— Color of the reactants
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Q. Which of the following haloalkanes is expected to be the most reactive in nucleophilic substitution reactions? (2023)
A.
Chloroethane
B.
Bromoethane
C.
Iodoethane
D.
Fluoroethane
Show solution
Solution
Iodoethane is the most reactive due to the weaker C-I bond compared to C-Br, C-Cl, and C-F bonds.
Correct Answer:
C
— Iodoethane
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Q. Which of the following has the highest bond energy? (2023)
A.
C-H
B.
C-C
C.
C=N
D.
C≡C
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Solution
C≡C (triple bond) has the highest bond energy due to the strong attraction between the two carbon atoms.
Correct Answer:
D
— C≡C
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Q. Which of the following has the highest ionization energy? (2020) 2020
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Solution
Lithium (Li) has the highest ionization energy among the given options.
Correct Answer:
A
— Li
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Q. Which of the following has the lowest boiling point? (2023)
A.
H2O
B.
NH3
C.
CH4
D.
HF
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Solution
CH4 (methane) has the lowest boiling point due to weak London dispersion forces compared to the other molecules.
Correct Answer:
C
— CH4
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Q. Which of the following hydrocarbons is saturated?
A.
C2H2
B.
C3H6
C.
C4H10
D.
C5H8
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Solution
C4H10 (butane) is a saturated hydrocarbon, containing only single bonds.
Correct Answer:
C
— C4H10
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Q. Which of the following ions has a d5 configuration?
A.
Mn2+
B.
Fe3+
C.
Cr3+
D.
V4+
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Solution
Mn2+ has a d5 configuration as it loses two electrons from its 4s and 3d orbitals.
Correct Answer:
A
— Mn2+
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Q. Which of the following ions has a stable octet? (2023)
A.
Na+
B.
Cl-
C.
Mg2+
D.
All of the above
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Solution
All of the ions Na+, Cl-, and Mg2+ have achieved a stable octet configuration.
Correct Answer:
D
— All of the above
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Q. Which of the following is a base quantity? (2020)
A.
Force
B.
Energy
C.
Length
D.
Pressure
Show solution
Solution
Length is a base quantity in the SI system, while force, energy, and pressure are derived quantities.
Correct Answer:
C
— Length
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Q. Which of the following is a base unit in the SI system? (2020)
A.
Liter
B.
Meter
C.
Newton
D.
Joule
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Solution
Meter is a base unit in the SI system, while liter, newton, and joule are derived units.
Correct Answer:
B
— Meter
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Q. Which of the following is a bidentate ligand? (2020) 2020
A.
NH3
B.
EDTA
C.
Cl-
D.
H2O
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Solution
EDTA can form multiple bonds with a metal ion, making it a bidentate ligand as it can attach at two sites.
Correct Answer:
B
— EDTA
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Q. Which of the following is a carbohydrate? (2023) 2023
A.
Glucose
B.
Amino acid
C.
Fatty acid
D.
Nucleotide
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Solution
Glucose is a simple sugar and a primary carbohydrate.
Correct Answer:
A
— Glucose
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Q. Which of the following is a carboxylic acid?
A.
C2H5OH
B.
C3H6O
C.
C2H4O2
D.
C3H8
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Solution
C2H4O2 (Acetic acid) is a carboxylic acid.
Correct Answer:
C
— C2H4O2
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Q. Which of the following is a characteristic of adsorption? (2023)
A.
It is a bulk phenomenon.
B.
It is a surface phenomenon.
C.
It occurs at high temperatures only.
D.
It is always exothermic.
Show solution
Solution
Adsorption is a surface phenomenon, as it occurs at the interface between phases.
Correct Answer:
B
— It is a surface phenomenon.
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Q. Which of the following is a characteristic of elastomers?
A.
Brittle
B.
Rigid
C.
Elastic
D.
Conductive
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Solution
Elastomers are known for their elastic properties, allowing them to stretch and return to their original shape.
Correct Answer:
C
— Elastic
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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
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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 reaction of phenols? (2021) 2021
A.
Esterification
B.
Nitration
C.
Halogenation
D.
Hydrogenation
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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 common use of ketones?
A.
Solvents
B.
Preservatives
C.
Fragrances
D.
All of the above
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Solution
Ketones are commonly used as solvents, preservatives, and fragrances.
Correct Answer:
D
— All of the above
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Q. Which of the following is a common use of PVC?
A.
Clothing
B.
Pipes
C.
Food packaging
D.
Adhesives
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Solution
PVC (Polyvinyl Chloride) is commonly used in the production of pipes due to its durability and resistance to corrosion.
Correct Answer:
B
— Pipes
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Q. Which of the following is a common use of transition metals?
A.
Insulators
B.
Catalysts
C.
Noble gases
D.
Non-metals
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Solution
Transition metals are commonly used as catalysts in various chemical reactions.
Correct Answer:
B
— Catalysts
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Q. Which of the following is a lanthanide series element?
A.
Yttrium
B.
Neodymium
C.
Zirconium
D.
Ruthenium
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Solution
Neodymium (Nd) is a member of the lanthanide series.
Correct Answer:
B
— Neodymium
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Q. Which of the following is a lipid? (2023) 2023
A.
Starch
B.
Cholesterol
C.
Cellulose
D.
Glucose
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Solution
Cholesterol is a type of lipid that is important for cell membrane structure.
Correct Answer:
B
— Cholesterol
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Q. Which of the following is a polymer of glucose? (2015)
A.
Starch
B.
Glycogen
C.
Cellulose
D.
All of the above
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Solution
Starch, glycogen, and cellulose are all polymers made from glucose.
Correct Answer:
D
— All of the above
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Q. Which of the following is a primary alcohol? (2020) 2020
A.
2-Propanol
B.
1-Butanol
C.
Cyclohexanol
D.
2-Pentanol
Show solution
Solution
1-Butanol has the hydroxyl group (-OH) attached to a primary carbon, making it a primary alcohol.
Correct Answer:
B
— 1-Butanol
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Q. Which of the following is a primary alcohol? (2022) 2022
A.
1-butanol
B.
2-butanol
C.
tert-butanol
D.
cyclohexanol
Show solution
Solution
1-butanol has the hydroxyl group (-OH) attached to a primary carbon atom, making it a primary alcohol.
Correct Answer:
A
— 1-butanol
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Q. Which of the following is a primary amine? (2022) 2022
A.
Ethylamine
B.
Dimethylamine
C.
Trimethylamine
D.
Aniline
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Solution
Ethylamine (C2H5NH2) is a primary amine as it has one alkyl group attached to the nitrogen atom.
Correct Answer:
A
— Ethylamine
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Q. Which of the following is a primary cell? (2023) 2023
A.
Lead-acid battery
B.
Nickel-cadmium battery
C.
Zinc-carbon battery
D.
Lithium-ion battery
Show solution
Solution
The zinc-carbon battery is a type of primary cell, which cannot be recharged.
Correct Answer:
C
— Zinc-carbon battery
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Q. Which of the following is a property of halogens? (2021) 2021
A.
They are all metals
B.
They have low electronegativity
C.
They form diatomic molecules
D.
They are colorless gases
Show solution
Solution
Halogens exist as diatomic molecules (e.g., Cl2, F2).
Correct Answer:
C
— They form diatomic molecules
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Q. Which of the following is a reducing agent in the reaction 2MnO4- + 5C2O4^2- + 16H+ → 2Mn^2+ + 10CO2 + 8H2O? (2020)
A.
MnO4-
B.
C2O4^2-
C.
H+
D.
CO2
Show solution
Solution
C2O4^2- (oxalate ion) is oxidized to CO2, thus it acts as a reducing agent in this reaction.
Correct Answer:
B
— C2O4^2-
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Q. Which of the following is a saturated carboxylic acid?
A.
Hexanoic acid
B.
Hexenoic acid
C.
Cyclohexanoic acid
D.
Benzoic acid
Show solution
Solution
Hexanoic acid is a saturated carboxylic acid.
Correct Answer:
A
— Hexanoic acid
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