Q. What type of adsorption is characterized by the formation of strong chemical bonds?
-
A.
Physisorption
-
B.
Chemisorption
-
C.
Desorption
-
D.
Multilayer adsorption
Solution
Chemisorption is characterized by the formation of strong chemical bonds between the adsorbate and the adsorbent.
Correct Answer:
B
— Chemisorption
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Q. What type of adsorption occurs when the adsorbate forms strong chemical bonds with the adsorbent?
-
A.
Physisorption
-
B.
Chemisorption
-
C.
Desorption
-
D.
Sorption
Solution
Chemisorption involves the formation of strong chemical bonds between the adsorbate and the adsorbent.
Correct Answer:
B
— Chemisorption
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Q. What type of alcohol is isopropanol?
-
A.
Primary
-
B.
Secondary
-
C.
Tertiary
-
D.
None of the above
Solution
Isopropanol (2-propanol) is a secondary alcohol, as the hydroxyl group is attached to a carbon that is connected to two other carbons.
Correct Answer:
B
— Secondary
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Q. What type of amine is formed by the reaction of ammonia with an alkyl halide? (2019)
-
A.
Tertiary amine
-
B.
Primary amine
-
C.
Secondary amine
-
D.
Quaternary ammonium salt
Solution
The reaction of ammonia with an alkyl halide primarily forms a primary amine.
Correct Answer:
B
— Primary amine
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Q. What type of amine is formed when ammonia reacts with an alkyl halide? (2022)
-
A.
Primary amine
-
B.
Secondary amine
-
C.
Tertiary amine
-
D.
Quaternary ammonium salt
Solution
The reaction of ammonia with an alkyl halide initially forms a primary amine.
Correct Answer:
A
— Primary amine
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Q. What type of biomolecule are enzymes classified as?
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Lipids
-
D.
Nucleic acids
Solution
Enzymes are primarily proteins that catalyze biochemical reactions.
Correct Answer:
B
— Proteins
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Q. What type of biomolecule are enzymes? (2019)
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Lipids
-
D.
Nucleic acids
Solution
Enzymes are primarily proteins that catalyze biochemical reactions.
Correct Answer:
B
— Proteins
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Q. What type of biomolecule is DNA? (2022)
-
A.
Protein
-
B.
Carbohydrate
-
C.
Lipid
-
D.
Nucleic acid
Solution
DNA is classified as a nucleic acid, which stores and transmits genetic information.
Correct Answer:
D
— Nucleic acid
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Q. What type of biomolecule is insulin?
-
A.
Carbohydrate
-
B.
Lipid
-
C.
Protein
-
D.
Nucleic acid
Solution
Insulin is a protein hormone that regulates glucose levels in the blood.
Correct Answer:
C
— Protein
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Q. What type of biomolecule is RNA? (2014)
-
A.
Protein
-
B.
Carbohydrate
-
C.
Nucleic Acid
-
D.
Lipid
Solution
RNA is classified as a nucleic acid, which plays a crucial role in protein synthesis.
Correct Answer:
C
— Nucleic Acid
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Q. What type of bond forms between the carboxyl group of one amino acid and the amino group of another?
-
A.
Hydrogen bond
-
B.
Ionic bond
-
C.
Peptide bond
-
D.
Disulfide bond
Solution
A peptide bond forms between the carboxyl group of one amino acid and the amino group of another, linking them together in a protein.
Correct Answer:
C
— Peptide bond
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Q. What type of bond is formed between amino acids in a protein?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Hydrogen bond
-
D.
Van der Waals forces
Solution
A covalent bond, specifically a peptide bond, is formed between amino acids in a protein.
Correct Answer:
B
— Covalent bond
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Q. What type of bond is formed between sodium (Na) and chlorine (Cl) in NaCl? (2019)
-
A.
Covalent bond
-
B.
Ionic bond
-
C.
Metallic bond
-
D.
Hydrogen bond
Solution
NaCl is formed by the transfer of an electron from sodium to chlorine, resulting in an ionic bond.
Correct Answer:
B
— Ionic bond
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Q. What type of bond is formed between sodium and chlorine in NaCl?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Metallic bond
-
D.
Van der Waals bond
Solution
NaCl is formed by an ionic bond due to the transfer of electrons from sodium to chlorine.
Correct Answer:
A
— Ionic bond
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Q. What type of bond is formed between the amino group of one amino acid and the carboxyl group of another?
-
A.
Ionic bond
-
B.
Hydrogen bond
-
C.
Peptide bond
-
D.
Covalent bond
Solution
A peptide bond is formed between the amino group of one amino acid and the carboxyl group of another.
Correct Answer:
C
— Peptide bond
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Q. What type of bond is formed between two atoms that share electrons? (2022)
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Metallic bond
-
D.
Hydrogen bond
Solution
A covalent bond is formed when two atoms share electrons.
Correct Answer:
B
— Covalent bond
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Q. What type of bond is formed between two metal atoms?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Metallic bond
-
D.
Polar bond
Solution
Metallic bonds are formed between metal atoms, characterized by a 'sea of electrons' that are free to move.
Correct Answer:
C
— Metallic bond
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Q. What type of bond is formed when two atoms share electrons? (2023)
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Metallic bond
-
D.
Hydrogen bond
Solution
A covalent bond is formed when two atoms share electrons to achieve stability.
Correct Answer:
B
— Covalent bond
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Q. What type of bond is formed when two atoms share electrons? (2023) 2023
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Metallic bond
-
D.
Hydrogen bond
Solution
A covalent bond is formed when two atoms share electrons to achieve stability.
Correct Answer:
B
— Covalent bond
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Q. What type of bond is present in a carbon-carbon double bond?
-
A.
Single bond
-
B.
Double bond
-
C.
Triple bond
-
D.
Quadruple bond
Solution
A carbon-carbon double bond consists of one sigma bond and one pi bond, making it a double bond.
Correct Answer:
B
— Double bond
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Q. What type of bond is present in a saturated hydrocarbon?
-
A.
Double bond
-
B.
Triple bond
-
C.
Single bond
-
D.
Quadruple bond
Solution
Saturated hydrocarbons contain only single bonds between carbon atoms.
Correct Answer:
C
— Single bond
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Q. What type of bond is present in alkenes?
-
A.
Single bond
-
B.
Double bond
-
C.
Triple bond
-
D.
Quadruple bond
Solution
Alkenes contain at least one double bond between carbon atoms.
Correct Answer:
B
— Double bond
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Q. What type of bond is present in alkynes? (2022)
-
A.
Single bond
-
B.
Double bond
-
C.
Triple bond
-
D.
Quadruple bond
Solution
Alkynes contain at least one triple bond between carbon atoms.
Correct Answer:
C
— Triple bond
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Q. What type of bond is present in O2? (2022)
-
A.
Single bond
-
B.
Double bond
-
C.
Triple bond
-
D.
Quadruple bond
Solution
O2 has a double bond, as two pairs of electrons are shared between the two oxygen atoms.
Correct Answer:
B
— Double bond
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Q. What type of bond is primarily found in alkenes? (2023)
-
A.
Single bond
-
B.
Double bond
-
C.
Triple bond
-
D.
Ionic bond
Solution
Alkenes are characterized by the presence of at least one double bond between carbon atoms.
Correct Answer:
B
— Double bond
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Q. What type of bond is primarily found in organic compounds? (2023)
-
A.
Ionic bonds
-
B.
Covalent bonds
-
C.
Metallic bonds
-
D.
Hydrogen bonds
Solution
Organic compounds primarily consist of covalent bonds formed between carbon and other atoms.
Correct Answer:
B
— Covalent bonds
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Q. What type of bond is primarily responsible for the secondary structure of proteins?
-
A.
Ionic bonds
-
B.
Hydrogen bonds
-
C.
Covalent bonds
-
D.
Disulfide bonds
Solution
Hydrogen bonds are primarily responsible for the formation of secondary structures like alpha-helices and beta-pleated sheets in proteins.
Correct Answer:
B
— Hydrogen bonds
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Q. What type of bond is primarily responsible for the strength of polymers?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Hydrogen bond
-
D.
Metallic bond
Solution
Covalent bonds are primarily responsible for the strength and stability of polymer chains.
Correct Answer:
B
— Covalent bond
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Q. What type of bond is primarily responsible for the structure of polymers?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Hydrogen bond
-
D.
Metallic bond
Solution
Covalent bonds are primarily responsible for the structure of polymers, linking monomers together.
Correct Answer:
B
— Covalent bond
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Q. What type of bond links amino acids in proteins?
-
A.
Ionic bond
-
B.
Covalent bond
-
C.
Hydrogen bond
-
D.
Van der Waals forces
Solution
Amino acids are linked by peptide bonds, which are a type of covalent bond.
Correct Answer:
B
— Covalent bond
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