Q. What type of crystal system does a diamond belong to? (2023)
A.
Cubic
B.
Tetragonal
C.
Hexagonal
D.
Orthorhombic
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Solution
Diamond crystallizes in a cubic crystal system, specifically in a face-centered cubic lattice.
Correct Answer: A — Cubic
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Q. What type of decay involves the conversion of a neutron into a proton? (2023)
A.
Alpha decay
B.
Beta decay
C.
Gamma decay
D.
Positron emission
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Solution
Beta decay involves the conversion of a neutron into a proton, emitting a beta particle (electron).
Correct Answer: B — Beta decay
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Q. What type of decay involves the conversion of a proton into a neutron? (2019)
A.
Alpha decay
B.
Beta plus decay
C.
Beta minus decay
D.
Gamma decay
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Solution
Beta plus decay involves the conversion of a proton into a neutron, emitting a positron.
Correct Answer: B — Beta plus decay
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Q. What type of epithelial tissue is found in areas subject to abrasion, such as the skin? (2022)
A.
Simple cuboidal epithelium
B.
Simple columnar epithelium
C.
Stratified squamous epithelium
D.
Transitional epithelium
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Solution
Stratified squamous epithelium is designed to protect underlying tissues in areas subject to abrasion.
Correct Answer: C — Stratified squamous epithelium
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Q. What type of epithelial tissue is found in the lining of the respiratory tract? (2022)
A.
Simple cuboidal epithelium
B.
Stratified squamous epithelium
C.
Ciliated columnar epithelium
D.
Transitional epithelium
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Solution
Ciliated columnar epithelium is found in the lining of the respiratory tract, where it helps to trap and move particles out of the airways.
Correct Answer: C — Ciliated columnar epithelium
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Q. What type of epithelial tissue is found in the lining of the stomach? (2019)
A.
Simple Squamous
B.
Cuboidal
C.
Columnar
D.
Stratified
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Solution
Columnar epithelial tissue is found in the lining of the stomach.
Correct Answer: C — Columnar
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Q. What type of epithelial tissue is specialized for absorption and secretion? (2020)
A.
Simple squamous epithelium
B.
Stratified squamous epithelium
C.
Cuboidal epithelium
D.
Columnar epithelium
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Solution
Columnar epithelium is specialized for absorption and secretion, often found in the digestive tract.
Correct Answer: D — Columnar epithelium
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Q. What type of epithelial tissue is specialized for absorption? (2020)
A.
Simple squamous epithelium
B.
Stratified squamous epithelium
C.
Simple cuboidal epithelium
D.
Simple columnar epithelium
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Solution
Simple columnar epithelium is specialized for absorption and secretion, commonly found in the intestines.
Correct Answer: D — Simple columnar epithelium
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Q. What type of image is formed by a convex lens when the object is placed beyond the 2F point? (2022)
A.
Real and inverted
B.
Virtual and erect
C.
Real and erect
D.
Virtual and inverted
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Solution
When the object is placed beyond 2F, the image formed by a convex lens is real, inverted, and smaller than the object.
Correct Answer: A — Real and inverted
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Q. What type of image is formed by a plane mirror? (2021)
A.
Real and inverted
B.
Virtual and erect
C.
Real and erect
D.
Virtual and inverted
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Solution
A plane mirror always forms a virtual and erect image, which is the same size as the object.
Correct Answer: B — Virtual and erect
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Q. What type of interaction occurs when one organism benefits while the other is harmed? (2021)
A.
Mutualism
B.
Commensalism
C.
Parasitism
D.
Competition
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Solution
Parasitism is a type of interaction where one organism benefits at the expense of another.
Correct Answer: C — Parasitism
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Q. What type of interaction occurs when two species compete for the same resources? (2021)
A.
Mutualism
B.
Commensalism
C.
Competition
D.
Predation
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Solution
Competition occurs when two species vie for the same limited resources, which can negatively impact both species.
Correct Answer: C — Competition
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Q. What type of isomerism is shown by compounds with the same molecular formula but different structural formulas? (2023)
A.
Geometric isomerism
B.
Structural isomerism
C.
Optical isomerism
D.
Conformational isomerism
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Solution
Structural isomerism occurs when compounds have the same molecular formula but different structural arrangements.
Correct Answer: B — Structural isomerism
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Q. What type of isomerism is shown by the amines CH3NH2 and C2H5NH2? (2023)
A.
Structural isomerism
B.
Geometric isomerism
C.
Optical isomerism
D.
Functional isomerism
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Solution
CH3NH2 (methylamine) and C2H5NH2 (ethylamine) exhibit structural isomerism as they have different carbon skeletons.
Correct Answer: A — Structural isomerism
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Q. What type of isomerism is shown by the complex [Co(en)2Cl2]+? (2021)
A.
Geometrical
B.
Optical
C.
Structural
D.
Coordination
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Solution
The complex [Co(en)2Cl2]+ can exhibit optical isomerism due to the presence of bidentate ligands (en = ethylenediamine) which can create non-superimposable mirror images.
Correct Answer: B — Optical
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Q. What type of isomerism is shown by the complex [Cr(en)2Cl2]+? (2023)
A.
Geometrical
B.
Optical
C.
Linkage
D.
Coordination
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Solution
The complex [Cr(en)2Cl2]+ can show optical isomerism due to the presence of bidentate ligands (en = ethylenediamine) which can create non-superimposable mirror images.
Correct Answer: B — Optical
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Q. What type of isomerism is shown by the complex [Cr(en)3]3+? (2023)
A.
Geometrical
B.
Optical
C.
Linkage
D.
Coordination
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Solution
The complex [Cr(en)3]3+ shows optical isomerism because it contains bidentate ligands (en = ethylenediamine) that can create non-superimposable mirror images.
Correct Answer: B — Optical
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Q. What type of joint allows for rotational movement? (2019)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
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Solution
Pivot joints allow for rotational movement, as seen in the neck.
Correct Answer: C — Pivot joint
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Q. What type of joint allows for the greatest range of motion? (2021)
A.
A. Hinge joint
B.
B. Ball-and-socket joint
C.
C. Pivot joint
D.
D. Saddle joint
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Solution
Ball-and-socket joints, such as the shoulder and hip joints, allow for the greatest range of motion.
Correct Answer: B — B. Ball-and-socket joint
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Q. What type of joint is found in the human elbow? (2020)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
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Solution
The elbow is a hinge joint, allowing movement in one plane, primarily flexion and extension.
Correct Answer: A — Hinge joint
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Q. What type of joint is found in the human shoulder? (2020)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
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Solution
The shoulder joint is a ball and socket joint, allowing for a wide range of motion.
Correct Answer: B — Ball and socket joint
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Q. What type of joint is found in the shoulder and hip? (2020)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
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Solution
The shoulder and hip joints are ball and socket joints, allowing for a wide range of motion.
Correct Answer: B — Ball and socket joint
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Q. What type of joint is found in the shoulder? (2020)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
Show solution
Solution
The shoulder joint is a ball and socket joint, allowing for a wide range of motion.
Correct Answer: B — Ball and socket joint
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Q. What type of joint is the knee joint classified as? (2020)
A.
Hinge joint
B.
Ball and socket joint
C.
Pivot joint
D.
Saddle joint
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Solution
The knee joint is classified as a hinge joint, allowing movement primarily in one plane.
Correct Answer: A — Hinge joint
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Q. What type of junction is formed when p-type and n-type semiconductors are joined? (2022)
A.
p-n junction
B.
p-p junction
C.
n-n junction
D.
p-n-p junction
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Solution
A p-n junction is formed when p-type and n-type semiconductors are joined together.
Correct Answer: A — p-n junction
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Q. What type of leaf arrangement has leaves that grow directly opposite each other on the stem? (2021)
A.
Alternate
B.
Whorled
C.
Opposite
D.
Rosette
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Solution
In opposite leaf arrangement, two leaves grow at each node directly across from each other.
Correct Answer: C — Opposite
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Q. What type of leaf arrangement is characterized by leaves that grow directly opposite each other on the stem? (2021)
A.
Alternate
B.
Whorled
C.
Opposite
D.
Rosette
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Solution
In opposite leaf arrangement, two leaves grow at each node directly across from each other.
Correct Answer: C — Opposite
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Q. What type of lens is used to correct hypermetropia? (2021)
A.
Concave lens
B.
Convex lens
C.
Bifocal lens
D.
Cylindrical lens
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Solution
A convex lens is used to correct hypermetropia (farsightedness) as it converges light rays before they enter the eye.
Correct Answer: B — Convex lens
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Q. What type of lens is used to correct hyperopia? (2020)
A.
Concave lens
B.
Convex lens
C.
Bifocal lens
D.
Cylindrical lens
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Solution
A convex lens is used to correct hyperopia (farsightedness) as it converges light rays before they enter the eye.
Correct Answer: B — Convex lens
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Q. What type of macromolecule is cellulose? (2023)
A.
Protein
B.
Lipid
C.
Carbohydrate
D.
Nucleic acid
Show solution
Solution
Cellulose is a carbohydrate and a major component of plant cell walls.
Correct Answer: C — Carbohydrate
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