Q. What type of polymer is rubber classified as? (2019)
A.
Thermoplastic
B.
Thermosetting
C.
Elastomer
D.
Composite
Show solution
Solution
Rubber is classified as an elastomer, which is a type of polymer that exhibits elastic properties.
Correct Answer:
C
— Elastomer
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Q. What type of reaction forms a disaccharide from two monosaccharides? (2022)
A.
Hydrolysis
B.
Condensation
C.
Oxidation
D.
Reduction
Show solution
Solution
A condensation reaction occurs when two monosaccharides combine to form a disaccharide, releasing water.
Correct Answer:
B
— Condensation
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Q. What type of reaction occurs when 1-bromopropane reacts with sodium cyanide? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction between 1-bromopropane and sodium cyanide is a nucleophilic substitution reaction, resulting in the formation of propanenitrile.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-bromopropane reacts with sodium ethoxide? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Oxidation
Show solution
Solution
The reaction of 1-bromopropane with sodium ethoxide is a nucleophilic substitution reaction where the ethoxide ion replaces the bromine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chlorobutane is treated with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
When 1-chlorobutane is treated with aqueous KOH, a nucleophilic substitution reaction occurs, resulting in the formation of butanol.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-chloropropane is treated with aqueous KOH? (2019)
A.
Nucleophilic substitution
B.
Elimination
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 1-chloropropane with aqueous KOH leads to nucleophilic substitution, resulting in the formation of propanol.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 1-chloropropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
B
— Substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with potassium cyanide? (2019)
A.
Nucleophilic substitution
B.
Electrophilic substitution
C.
Addition reaction
D.
Elimination reaction
Show solution
Solution
The reaction between 1-chloropropane and potassium cyanide is a nucleophilic substitution reaction, resulting in the formation of propanenitrile.
Correct Answer:
A
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium cyanide? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction between 1-chloropropane and sodium cyanide is a nucleophilic substitution reaction where the cyanide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 1-chloropropane reacts with sodium iodide in acetone? (2023)
A.
Elimination
B.
Nucleophilic substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction is a nucleophilic substitution (S_N2) where iodide ion replaces the chlorine atom.
Correct Answer:
B
— Nucleophilic substitution
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Q. What type of reaction occurs when 2-bromopropane is treated with aqueous KOH? (2023)
A.
Elimination
B.
Substitution
C.
Addition
D.
Redox
Show solution
Solution
The reaction of 2-bromopropane with aqueous KOH leads to an elimination reaction, forming propene.
Correct Answer:
A
— Elimination
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Q. What type of reaction occurs when an alcohol is oxidized? (2023)
A.
Reduction
B.
Dehydration
C.
Substitution
D.
Oxidation
Show solution
Solution
Oxidation of alcohols involves the loss of hydrogen or the gain of oxygen, leading to the formation of aldehydes, ketones, or carboxylic acids.
Correct Answer:
D
— Oxidation
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Q. What type of reaction occurs when chlorobenzene is treated with magnesium in dry ether? (2019)
A.
Grignard reaction
B.
Nucleophilic substitution
C.
Electrophilic substitution
D.
Reduction reaction
Show solution
Solution
The reaction of chlorobenzene with magnesium in dry ether forms a Grignard reagent, which is a key step in organic synthesis.
Correct Answer:
A
— Grignard reaction
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Q. What type of reaction occurs when phenol reacts with bromine? (2023)
A.
Electrophilic substitution
B.
Nucleophilic substitution
C.
Addition
D.
Elimination
Show solution
Solution
Phenol undergoes electrophilic substitution when it reacts with bromine, resulting in brominated phenols.
Correct Answer:
A
— Electrophilic substitution
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Q. What type of solid is diamond classified as? (2022)
A.
Metallic solid
B.
Ionic solid
C.
Covalent network solid
D.
Molecular solid
Show solution
Solution
Diamond is classified as a covalent network solid due to its strong covalent bonds forming a three-dimensional network.
Correct Answer:
C
— Covalent network solid
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Q. Which alkali metal is known for its vigorous reaction with water? (2022)
A.
Lithium
B.
Sodium
C.
Potassium
D.
Rubidium
Show solution
Solution
Potassium (K) reacts vigorously with water, producing potassium hydroxide and hydrogen gas.
Correct Answer:
C
— Potassium
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Q. Which alkaline earth metal has the highest melting point? (2022)
A.
Beryllium
B.
Magnesium
C.
Calcium
D.
Barium
Show solution
Solution
Beryllium has the highest melting point among the alkaline earth metals.
Correct Answer:
A
— Beryllium
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Q. Which alkaline earth metal is known for its use in the production of lightweight alloys? (2023)
A.
Calcium
B.
Barium
C.
Magnesium
D.
Strontium
Show solution
Solution
Magnesium is widely used in the production of lightweight alloys due to its low density.
Correct Answer:
C
— Magnesium
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Q. Which alkaline earth metal is used in fireworks for its bright flame? (2021)
A.
Barium
B.
Calcium
C.
Strontium
D.
Magnesium
Show solution
Solution
Strontium (Sr) is used in fireworks to produce a bright red flame.
Correct Answer:
C
— Strontium
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Q. Which alkaline earth metal is used in fireworks for producing a bright red flame? (2023)
A.
Strontium
B.
Calcium
C.
Barium
D.
Magnesium
Show solution
Solution
Strontium compounds are used in fireworks to produce a bright red flame.
Correct Answer:
A
— Strontium
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Q. Which alkaline earth metal is used in fireworks for producing a bright white light? (2023)
A.
Barium
B.
Calcium
C.
Strontium
D.
Magnesium
Show solution
Solution
Strontium is used in fireworks to produce a bright red flame.
Correct Answer:
C
— Strontium
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Q. Which amine is derived from an aromatic compound? (2023)
A.
Aniline
B.
Ethylamine
C.
Methylamine
D.
Propylamine
Show solution
Solution
Aniline is derived from an aromatic compound (benzene) and contains an amino group.
Correct Answer:
A
— Aniline
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Q. Which carboxylic acid is found in citrus fruits? (2023)
A.
Acetic acid
B.
Citric acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Citric acid is the carboxylic acid found in citrus fruits, contributing to their sour taste.
Correct Answer:
B
— Citric acid
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Q. Which carboxylic acid is known for its role in the Krebs cycle? (2019)
A.
Citric acid
B.
Acetic acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Citric acid plays a crucial role in the Krebs cycle, which is a key metabolic pathway.
Correct Answer:
A
— Citric acid
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Q. Which carboxylic acid is known for its use in the food industry as a preservative? (2023)
A.
Citric acid
B.
Acetic acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Acetic acid is widely used in the food industry as a preservative and flavoring agent.
Correct Answer:
B
— Acetic acid
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Q. Which carboxylic acid is known for its use in the production of biodiesel? (2023)
A.
Palmitic acid
B.
Stearic acid
C.
Oleic acid
D.
Linoleic acid
Show solution
Solution
Oleic acid is commonly used in the production of biodiesel due to its favorable properties.
Correct Answer:
C
— Oleic acid
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Q. Which carboxylic acid is known for its use in the production of nylon? (2019)
A.
Adipic acid
B.
Citric acid
C.
Lactic acid
D.
Acetic acid
Show solution
Solution
Adipic acid is used in the production of nylon, particularly nylon 6,6.
Correct Answer:
A
— Adipic acid
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Q. Which carboxylic acid is responsible for the sour taste in citrus fruits? (2020)
A.
Citric acid
B.
Acetic acid
C.
Lactic acid
D.
Formic acid
Show solution
Solution
Citric acid is responsible for the sour taste in citrus fruits.
Correct Answer:
A
— Citric acid
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Q. Which carboxylic acid is responsible for the sour taste in sour milk? (2020)
A.
Lactic acid
B.
Acetic acid
C.
Citric acid
D.
Formic acid
Show solution
Solution
Lactic acid is produced during the fermentation of lactose in sour milk, giving it a sour taste.
Correct Answer:
A
— Lactic acid
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Q. Which carboxylic acid is used in the production of nylon? (2023)
A.
Hexanoic acid
B.
Adipic acid
C.
Citric acid
D.
Acetic acid
Show solution
Solution
Adipic acid is used in the production of nylon, specifically nylon-6,6.
Correct Answer:
B
— Adipic acid
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Showing 331 to 360 of 626 (21 Pages)
Chemistry (NEET) MCQ & Objective Questions
Chemistry is a crucial subject for students preparing for NEET and other competitive exams in India. Mastering Chemistry (NEET) is essential not only for scoring well but also for building a strong foundation in scientific concepts. Practicing MCQs and objective questions can significantly enhance your exam preparation, allowing you to tackle important questions with confidence.
What You Will Practise Here
Fundamental concepts of Physical Chemistry
Organic Chemistry reactions and mechanisms
Inorganic Chemistry periodic table trends
Stoichiometry and chemical calculations
Equilibrium and thermodynamics principles
Important definitions and key formulas
Diagrams related to chemical structures and reactions
Exam Relevance
Chemistry is a significant part of the syllabus for CBSE, State Boards, NEET, and JEE. In these exams, questions often focus on conceptual understanding and application of theories. You can expect a mix of direct questions, application-based problems, and conceptual MCQs that test your knowledge of key topics. Familiarity with common question patterns will help you navigate the exam more effectively.
Common Mistakes Students Make
Overlooking the importance of units in calculations
Confusing similar concepts in Organic Chemistry
Neglecting to balance chemical equations correctly
Misinterpreting questions that involve multiple steps
Failing to memorize essential definitions and formulas
FAQs
Question: What are the best ways to prepare for Chemistry (NEET) MCQs?Answer: Regular practice of MCQs, understanding core concepts, and revising key formulas are effective strategies.
Question: How can I improve my speed in solving Chemistry (NEET) objective questions?Answer: Time yourself while practicing and focus on familiarizing yourself with common question types.
Start solving practice MCQs today to test your understanding and boost your confidence in Chemistry (NEET). Remember, consistent practice is the key to success!