Q. What type of light is completely polarized?
-
A.
Unpolarized light
-
B.
Partially polarized light
-
C.
Linearly polarized light
-
D.
Circularly polarized light
Solution
Linearly polarized light consists of waves that oscillate in a single plane, making it completely polarized.
Correct Answer: C — Linearly polarized light
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Q. What type of light is produced by a laser?
-
A.
Unpolarized light
-
B.
Partially polarized light
-
C.
Completely polarized light
-
D.
Diffused light
Solution
Lasers emit light that is completely polarized because the light waves are emitted in a single direction and phase.
Correct Answer: C — Completely polarized light
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Q. What type of mechanism does the reaction of 2-bromopropane with a strong nucleophile follow?
-
A.
SN1
-
B.
SN2
-
C.
E1
-
D.
E2
Solution
The reaction of 2-bromopropane with a strong nucleophile typically follows the SN2 mechanism due to steric hindrance.
Correct Answer: B — SN2
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Q. What type of orbit does a satellite in a geosynchronous orbit have?
-
A.
Elliptical orbit
-
B.
Circular orbit
-
C.
Parabolic orbit
-
D.
Hyperbolic orbit
Solution
A geosynchronous satellite typically has a circular orbit to maintain a constant position relative to the Earth's surface.
Correct Answer: B — Circular orbit
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Q. What type of polymer is formed by the polymerization of unsaturated monomers?
-
A.
Addition polymer
-
B.
Condensation polymer
-
C.
Natural polymer
-
D.
Biopolymer
Solution
Addition polymers are formed by the polymerization of unsaturated monomers.
Correct Answer: A — Addition polymer
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Q. What type of polymer is formed from the polymerization of isoprene?
-
A.
Natural rubber
-
B.
Nylon
-
C.
Polyethylene
-
D.
Polystyrene
Solution
Natural rubber is formed from the polymerization of isoprene.
Correct Answer: A — Natural rubber
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Q. What type of polymer is formed when amino acids link together?
-
A.
Polysaccharides
-
B.
Proteins
-
C.
Nucleic acids
-
D.
Lipids
Solution
Proteins are polymers formed by the linkage of amino acids through peptide bonds.
Correct Answer: B — Proteins
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Q. What type of polymerization involves the formation of a polymer by the reaction of monomers with unsaturated bonds?
-
A.
Addition polymerization
-
B.
Condensation polymerization
-
C.
Chain-growth polymerization
-
D.
Step-growth polymerization
Solution
Addition polymerization involves the reaction of monomers with unsaturated bonds to form a polymer.
Correct Answer: A — Addition polymerization
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Q. What type of polymerization involves the formation of a polymer by the reaction of monomers with functional groups?
-
A.
Addition polymerization
-
B.
Condensation polymerization
-
C.
Chain-growth polymerization
-
D.
Step-growth polymerization
Solution
Condensation polymerization involves the reaction of monomers with functional groups, resulting in the elimination of small molecules.
Correct Answer: B — Condensation polymerization
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Q. What type of polymerization involves the formation of a polymer from monomers with the elimination of a small molecule?
-
A.
Addition polymerization
-
B.
Condensation polymerization
-
C.
Chain-growth polymerization
-
D.
Step-growth polymerization
Solution
Condensation polymerization involves the elimination of a small molecule, such as water.
Correct Answer: B — Condensation polymerization
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Q. What type of protein is hemoglobin?
-
A.
Enzyme
-
B.
Structural protein
-
C.
Transport protein
-
D.
Hormonal protein
Solution
Hemoglobin is a transport protein that carries oxygen in the blood.
Correct Answer: C — Transport protein
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Q. What type of protein structure involves multiple polypeptide chains?
-
A.
Primary structure
-
B.
Secondary structure
-
C.
Tertiary structure
-
D.
Quaternary structure
Solution
The quaternary structure of a protein is formed when two or more polypeptide chains assemble into a functional protein complex.
Correct Answer: D — Quaternary structure
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Q. What type of radiation is emitted during alpha decay?
-
A.
Electrons
-
B.
Helium nuclei
-
C.
Gamma rays
-
D.
Neutrons
Solution
During alpha decay, helium nuclei (alpha particles) are emitted from the nucleus.
Correct Answer: B — Helium nuclei
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Q. What type of radiation is emitted during beta decay?
-
A.
Alpha particles
-
B.
Beta particles
-
C.
Gamma rays
-
D.
Neutrons
Solution
Beta decay involves the emission of beta particles, which are electrons or positrons.
Correct Answer: B — Beta particles
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Q. What type of radiation is most penetrating?
-
A.
Alpha radiation
-
B.
Beta radiation
-
C.
Gamma radiation
-
D.
Neutron radiation
Solution
Gamma radiation is the most penetrating type of radiation.
Correct Answer: C — Gamma radiation
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Q. What type of reaction do alkanes typically undergo?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Hydrolysis
Solution
Alkanes typically undergo substitution reactions, especially with halogens.
Correct Answer: B — Substitution
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Q. What type of reaction do alkenes typically undergo?
-
A.
Substitution
-
B.
Addition
-
C.
Elimination
-
D.
Redox
Solution
Alkenes typically undergo addition reactions due to the presence of double bonds.
Correct Answer: B — Addition
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Q. What type of reaction forms a peptide bond?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Oxidation
-
D.
Reduction
Solution
A peptide bond is formed through a condensation reaction, where water is released.
Correct Answer: B — Condensation
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Q. What type of reaction forms peptide bonds between amino acids?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Redox
-
D.
Substitution
Solution
Peptide bonds are formed through a condensation reaction, where a molecule of water is released.
Correct Answer: B — Condensation
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Q. What type of reaction forms peptide bonds?
-
A.
Hydrolysis
-
B.
Condensation
-
C.
Oxidation
-
D.
Reduction
Solution
Peptide bonds are formed through a condensation reaction between amino acids.
Correct Answer: B — Condensation
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Q. What type of reaction forms polymers from monomers?
-
A.
Hydrolysis
-
B.
Dehydration synthesis
-
C.
Redox reaction
-
D.
Condensation reaction
Solution
Dehydration synthesis is the reaction that links monomers together to form polymers by removing water.
Correct Answer: B — Dehydration synthesis
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Q. What type of reaction occurs when 1-bromopropane reacts with potassium cyanide?
-
A.
Elimination
-
B.
Substitution
-
C.
Addition
-
D.
Redox
Solution
The reaction is a nucleophilic substitution where the cyanide ion replaces the bromine atom.
Correct Answer: B — Substitution
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Q. What type of reaction occurs when 2-bromobutane is treated with sodium ethoxide?
-
A.
Nucleophilic substitution
-
B.
Elimination
-
C.
Addition
-
D.
Redox
Solution
The treatment of 2-bromobutane with sodium ethoxide leads to an elimination reaction, forming an alkene.
Correct Answer: B — Elimination
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Q. What type of reaction occurs when alkenes are converted to alkanes?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Oxidation
Solution
The conversion of alkenes to alkanes involves the addition of hydrogen (hydrogenation).
Correct Answer: A — Addition
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Q. What type of reaction occurs when alkenes react with hydrogen?
-
A.
Hydrolysis
-
B.
Hydrogenation
-
C.
Dehydrogenation
-
D.
Oxidation
Solution
The reaction of alkenes with hydrogen is called hydrogenation.
Correct Answer: B — Hydrogenation
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Q. What type of reaction occurs when alkenes undergo hydrogenation?
-
A.
Addition
-
B.
Substitution
-
C.
Elimination
-
D.
Oxidation
Solution
Hydrogenation is an addition reaction where hydrogen is added across the double bond.
Correct Answer: A — Addition
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Q. What type of reaction occurs when an alcohol reacts with an acid to form an ether?
-
A.
Esterification
-
B.
Dehydration
-
C.
Condensation
-
D.
Hydrolysis
Solution
The reaction between an alcohol and an acid to form an ether is a condensation reaction.
Correct Answer: C — Condensation
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Q. What type of reaction occurs when an alkene reacts with hydrogen in the presence of a catalyst?
-
A.
Hydration
-
B.
Hydrogenation
-
C.
Halogenation
-
D.
Oxidation
Solution
The reaction of an alkene with hydrogen in the presence of a catalyst is called hydrogenation.
Correct Answer: B — Hydrogenation
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Q. What type of reaction occurs when an alkene reacts with hydrogen?
-
A.
Hydration
-
B.
Hydrogenation
-
C.
Dehydrogenation
-
D.
Halogenation
Solution
Hydrogenation is the addition of hydrogen to an alkene, converting it to an alkane.
Correct Answer: B — Hydrogenation
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Q. What type of reaction occurs when an alkene reacts with water in the presence of an acid?
-
A.
Hydrolysis
-
B.
Dehydration
-
C.
Hydrogenation
-
D.
Halogenation
Solution
The reaction of an alkene with water in the presence of an acid is called hydrolysis.
Correct Answer: A — Hydrolysis
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