Q. Which process is primarily responsible for the movement of water in plants? (2020)
A.
Diffusion
B.
Osmosis
C.
Active transport
D.
Transpiration
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Solution
Transpiration creates a negative pressure in the leaves, which helps in the upward movement of water through the xylem.
Correct Answer: D — Transpiration
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Q. Which process is responsible for the movement of water across a semi-permeable membrane? (2020)
A.
Diffusion
B.
Osmosis
C.
Active transport
D.
Facilitated diffusion
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Solution
Osmosis is the process by which water moves across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
Correct Answer: B — Osmosis
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Q. Which process is responsible for the movement of water across a semipermeable membrane? (2020)
A.
Diffusion
B.
Osmosis
C.
Active transport
D.
Facilitated diffusion
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Solution
Osmosis is the process of movement of water across a semipermeable membrane.
Correct Answer: B — Osmosis
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Q. Which process is used by cells to obtain energy from glucose? (2022)
A.
Photosynthesis
B.
Fermentation
C.
Cellular respiration
D.
Transpiration
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Solution
Cells obtain energy from glucose through the process of cellular respiration.
Correct Answer: C — Cellular respiration
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Q. Which product consistently performed better than the others in Q1 and Q2?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product B consistently outperformed the others in both Q1 and Q2.
Correct Answer: B — Product B
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Q. Which product had the most consistent sales across all quarters according to the table?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product C had the most consistent sales, showing minimal variation across quarters.
Correct Answer: C — Product C
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Q. Which product had the most consistent sales across all quarters?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product B had the most consistent sales, showing minimal variation across all quarters.
Correct Answer: B — Product B
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Q. Which product's sales data suggests a seasonal trend?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product C's sales data suggests a seasonal trend with peaks in specific quarters.
Correct Answer: C — Product C
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Q. Which product's sales figures are most volatile according to the table?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product D shows the most volatility with significant fluctuations in sales across the quarters.
Correct Answer: D — Product D
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Q. Which product's sales in Q1 were equal to the combined sales of Products A and C in Q2?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product B's sales in Q1 were equal to the combined sales of Products A and C in Q2.
Correct Answer: B — Product B
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Q. Which product's sales in Q4 were equal to the sum of its sales in Q1 and Q2?
A.
Product A
B.
Product B
C.
Product C
D.
Product D
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Solution
Product C's sales in Q4 were equal to the sum of its sales in Q1 and Q2.
Correct Answer: C — Product C
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Q. Which property is NOT typical of elastomers?
A.
High elasticity
B.
Low tensile strength
C.
Good resilience
D.
Brittleness
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Solution
Brittleness is not a typical property of elastomers; they are known for their high elasticity and resilience.
Correct Answer: D — Brittleness
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Q. Which property of a material describes its ability to return to its original shape after deformation? (2023)
A.
Plasticity
B.
Elasticity
C.
Ductility
D.
Brittleness
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Solution
Elasticity is the property that allows a material to return to its original shape after deformation.
Correct Answer: B — Elasticity
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Q. Which property of fluids is defined as the resistance to flow?
A.
Density
B.
Viscosity
C.
Pressure
D.
Surface Tension
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Solution
Viscosity is the property of fluids that describes their resistance to flow.
Correct Answer: B — Viscosity
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Q. Which property of polymers is primarily affected by their molecular weight?
A.
Color
B.
Density
C.
Melting point
D.
Solubility
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Solution
The melting point of polymers is primarily affected by their molecular weight; higher molecular weight generally leads to higher melting points.
Correct Answer: C — Melting point
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Q. Which protein forms the thick filaments in muscle fibers? (2020)
A.
A. Actin
B.
B. Myosin
C.
C. Tropomyosin
D.
D. Troponin
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Solution
Myosin forms the thick filaments in muscle fibers and interacts with actin during contraction.
Correct Answer: B — B. Myosin
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Q. Which protein is primarily responsible for muscle contraction? (2019)
A.
Actin
B.
Myosin
C.
Tropomyosin
D.
Troponin
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Solution
Myosin is the primary protein that interacts with actin to facilitate muscle contraction.
Correct Answer: B — Myosin
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Q. Which protocol is used to retrieve emails from a mail server? (2021)
A.
SMTP
B.
IMAP
C.
FTP
D.
HTTP
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Solution
IMAP (Internet Message Access Protocol) is used to retrieve emails from a mail server.
Correct Answer: B — IMAP
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Q. Which quadrilateral has all sides equal but angles not necessarily equal? (2023)
A.
Square
B.
Rectangle
C.
Rhombus
D.
Trapezium
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Solution
A rhombus has all sides equal, but the angles are not necessarily equal.
Correct Answer: C — Rhombus
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Q. Which quantum number can have a value of 0?
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Solution
The azimuthal quantum number (l) can have a value of 0, which corresponds to an s orbital.
Correct Answer: B — l
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Q. Which quantum number describes the orientation of an orbital in space?
A.
Principal quantum number
B.
Azimuthal quantum number
C.
Magnetic quantum number
D.
Spin quantum number
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Solution
The magnetic quantum number (m_l) describes the orientation of an orbital in space.
Correct Answer: C — Magnetic quantum number
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Q. Which quantum number describes the orientation of an orbital?
A.
Principal quantum number
B.
Azimuthal quantum number
C.
Magnetic quantum number
D.
Spin quantum number
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Solution
The magnetic quantum number describes the orientation of an orbital in space.
Correct Answer: C — Magnetic quantum number
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Q. Which quantum number describes the orientation of an orbital? (2020) 2020
A.
Principal quantum number
B.
Azimuthal quantum number
C.
Magnetic quantum number
D.
Spin quantum number
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Solution
The magnetic quantum number describes the orientation of an orbital.
Correct Answer: C — Magnetic quantum number
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Q. Which quantum number describes the shape of an orbital?
A.
Principal quantum number (n)
B.
Azimuthal quantum number (l)
C.
Magnetic quantum number (m_l)
D.
Spin quantum number (m_s)
Show solution
Solution
The azimuthal quantum number (l) determines the shape of the orbital.
Correct Answer: B — Azimuthal quantum number (l)
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Q. Which quantum number determines the energy level of an electron in an atom?
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Solution
The principal quantum number n determines the energy level of an electron in an atom.
Correct Answer: A — n
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Q. Which quantum number determines the orientation of an orbital in space?
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Solution
The magnetic quantum number (m_l) determines the orientation of an orbital in space.
Correct Answer: C — m_l
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Q. Which quantum number determines the orientation of an orbital?
A.
Principal quantum number (n)
B.
Azimuthal quantum number (l)
C.
Magnetic quantum number (m_l)
D.
Spin quantum number (m_s)
Show solution
Solution
The magnetic quantum number (m_l) determines the orientation of an orbital.
Correct Answer: C — Magnetic quantum number (m_l)
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Q. Which quantum number determines the shape of an atomic orbital?
A.
Principal quantum number (n)
B.
Azimuthal quantum number (l)
C.
Magnetic quantum number (m_l)
D.
Spin quantum number (m_s)
Show solution
Solution
The azimuthal quantum number (l) determines the shape of the orbital.
Correct Answer: B — Azimuthal quantum number (l)
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Q. Which quantum number is associated with the orientation of an orbital?
A.
Principal quantum number (n)
B.
Azimuthal quantum number (l)
C.
Magnetic quantum number (m_l)
D.
Spin quantum number (m_s)
Show solution
Solution
The magnetic quantum number (m_l) describes the orientation of an orbital in space.
Correct Answer: C — Magnetic quantum number (m_l)
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Q. Which quantum number is not allowed to be negative?
A.
Principal quantum number (n)
B.
Azimuthal quantum number (l)
C.
Magnetic quantum number (m)
D.
Spin quantum number (s)
Show solution
Solution
The principal quantum number (n) cannot be negative; it must be a positive integer.
Correct Answer: A — Principal quantum number (n)
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