Q. Which alkaline earth metal is used in fireworks for producing a bright red flame? (2023)
-
A.
Strontium
-
B.
Calcium
-
C.
Barium
-
D.
Magnesium
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
Solution
Strontium is used in fireworks to produce a bright red flame.
Correct Answer: C — Strontium
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Q. Which amine is a strong base due to steric hindrance? (2022)
-
A.
Methylamine
-
B.
Ethylamine
-
C.
Tert-butylamine
-
D.
Aniline
Solution
Tert-butylamine is a strong base due to steric hindrance that prevents protonation, making it more stable.
Correct Answer: C — Tert-butylamine
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Q. Which amine is derived from an aromatic compound? (2023)
-
A.
Aniline
-
B.
Ethylamine
-
C.
Methylamine
-
D.
Propylamine
Solution
Aniline is derived from an aromatic compound (benzene) and contains an amino group.
Correct Answer: A — Aniline
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Q. Which amine is known for its fishy odor?
-
A.
Methylamine
-
B.
Ethylamine
-
C.
Trimethylamine
-
D.
Aniline
Solution
Trimethylamine is known for its strong fishy odor, often associated with decaying fish.
Correct Answer: C — Trimethylamine
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Q. Which amine is used in the preparation of dyes?
-
A.
Aniline
-
B.
Methylamine
-
C.
Dimethylamine
-
D.
Ethylamine
Solution
Aniline is widely used in the preparation of dyes due to its reactivity.
Correct Answer: A — Aniline
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Q. Which biomolecule is involved in catalyzing biochemical reactions? (2022)
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Nucleic acids
-
D.
Lipids
Solution
Proteins, specifically enzymes, catalyze biochemical reactions.
Correct Answer: B — Proteins
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Q. Which biomolecule is involved in the formation of cell membranes? (2020)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Lipids, particularly phospholipids, are essential for cell membrane structure.
Correct Answer: C — Lipids
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Q. Which biomolecule is known for its role in catalyzing biochemical reactions?
-
A.
Nucleic Acids
-
B.
Carbohydrates
-
C.
Proteins
-
D.
Lipids
Solution
Proteins, specifically enzymes, are known for their role in catalyzing biochemical reactions.
Correct Answer: C — Proteins
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Q. Which biomolecule is made up of fatty acids and glycerol? (2022)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Lipids are composed of fatty acids and glycerol, forming structures like triglycerides.
Correct Answer: C — Lipids
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Q. Which biomolecule is made up of nucleotides? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are made of nucleotides.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily involved in energy transfer? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Carbohydrates are primarily involved in energy transfer.
Correct Answer: B — Carbohydrates
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Q. Which biomolecule is primarily involved in the structure of cell membranes?
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Nucleic Acids
-
D.
Phospholipids
Solution
Phospholipids are the main components of cell membranes, forming a bilayer.
Correct Answer: D — Phospholipids
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Q. Which biomolecule is primarily responsible for genetic information? (2023)
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, store and transmit genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily responsible for storing genetic information? (2023) 2023
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily used for energy in living organisms? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Nucleic acids
-
D.
Lipids
Solution
Carbohydrates are the primary source of energy for living organisms.
Correct Answer: B — Carbohydrates
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Q. Which biomolecule is primarily used for energy storage in animals?
-
A.
Glycogen
-
B.
Cellulose
-
C.
Chitin
-
D.
Starch
Solution
Glycogen is the primary energy storage molecule in animals.
Correct Answer: A — Glycogen
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Q. Which biomolecule is responsible for storing genetic information? (2023)
-
A.
Proteins
-
B.
Lipids
-
C.
Carbohydrates
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is responsible for storing genetic information? (2023) 2023
-
A.
Proteins
-
B.
Lipids
-
C.
Carbohydrates
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biotechnological application is used to produce insulin? (2018)
-
A.
Fermentation
-
B.
Gene cloning
-
C.
Cell culture
-
D.
Bioremediation
Solution
Gene cloning is used to produce insulin by inserting the human insulin gene into bacteria, which then produce insulin.
Correct Answer: B — Gene cloning
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Q. Which blood type is known as the universal donor? (2019)
-
A.
Type A
-
B.
Type B
-
C.
Type AB
-
D.
Type O
Solution
Type O blood is known as the universal donor because it lacks A and B antigens, making it safe for transfusion to any blood type.
Correct Answer: D — Type O
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Q. Which carboxylic acid has the highest boiling point?
-
A.
Formic acid
-
B.
Acetic acid
-
C.
Propanoic acid
-
D.
Butanoic acid
Solution
Butanoic acid has the highest boiling point due to its longer carbon chain.
Correct Answer: D — Butanoic acid
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Q. Which carboxylic acid is commonly known as 'butyric acid'?
-
A.
C3H6O2
-
B.
C4H8O2
-
C.
C5H10O2
-
D.
C2H4O2
Solution
Butyric acid has the molecular formula C4H8O2.
Correct Answer: B — C4H8O2
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Q. Which carboxylic acid is commonly known as formic acid?
-
A.
Methanoic acid
-
B.
Ethanoic acid
-
C.
Propanoic acid
-
D.
Butanoic acid
Solution
Formic acid is the common name for Methanoic acid.
Correct Answer: A — Methanoic acid
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Q. Which carboxylic acid is commonly known as vinegar?
-
A.
Formic acid
-
B.
Acetic acid
-
C.
Citric acid
-
D.
Lactic acid
Solution
Acetic acid is commonly known as vinegar.
Correct Answer: B — Acetic acid
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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
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 found in vinegar?
-
A.
Citric acid
-
B.
Acetic acid
-
C.
Lactic acid
-
D.
Formic acid
Solution
Acetic acid is the main component found in vinegar.
Correct Answer: B — Acetic 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
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
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
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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