Q. In the line graph illustrating the population growth of a city, what does a plateau in the line indicate?
-
A.
Rapid growth
-
B.
Stagnation
-
C.
Decline
-
D.
Unpredictable changes
Solution
A plateau indicates that the population growth has stagnated during that period.
Correct Answer:
B
— Stagnation
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Q. In the line graph illustrating the population growth of a city, which year saw the most significant increase? (2020)
-
A.
2018
-
B.
2019
-
C.
2020
-
D.
2021
Solution
The year 2020 showed the most significant increase in population growth according to the graph.
Correct Answer:
C
— 2020
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Q. In the line graph, if Product A's sales peaked in March and then declined steadily, what could be a possible reason for this trend?
-
A.
Launch of a new product
-
B.
Seasonal sales
-
C.
Price increase
-
D.
All of the above
Solution
Any of these factors could contribute to the peak and subsequent decline in sales.
Correct Answer:
D
— All of the above
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Q. In the line graph, if Product A's sales peaked in March and then declined, what could be a possible reason for this trend?
-
A.
Increased competition
-
B.
Seasonal demand
-
C.
Marketing campaign
-
D.
Price reduction
Solution
The peak in March followed by a decline could indicate increased competition affecting sales.
Correct Answer:
B
— Seasonal demand
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Q. In the line graph, if the sales of Product A and Product B intersect at a certain point, what does this signify?
-
A.
Product A is more popular
-
B.
Sales of both products are equal
-
C.
Product B is declining
-
D.
Product A is being phased out
Solution
The intersection indicates that the sales of Product A and Product B are equal at that point in time.
Correct Answer:
B
— Sales of both products are equal
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Q. In the line graph, if the sales of Product A and Product B intersect at a point, what does this indicate?
-
A.
Product A is more popular
-
B.
Sales of both products are equal
-
C.
Product B is declining
-
D.
Product A is being phased out
Solution
The intersection point indicates that the sales of both products are equal at that time.
Correct Answer:
B
— Sales of both products are equal
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Q. In the line graph, if the sales of Product A peaked in March and then declined, what could be a possible reason for this trend?
-
A.
Seasonal demand
-
B.
Increased competition
-
C.
Price hike
-
D.
All of the above
Solution
All listed factors could contribute to the peak and subsequent decline in sales.
Correct Answer:
D
— All of the above
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Q. In the line graph, what was the growth rate from Year 1 to Year 3?
-
A.
10%
-
B.
20%
-
C.
30%
-
D.
40%
Solution
The growth from Year 1 (100) to Year 3 (140) is 40%.
Correct Answer:
D
— 40%
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Q. In the line graph, what was the sales trend from January to March?
-
A.
Increasing
-
B.
Decreasing
-
C.
Stable
-
D.
Fluctuating
Solution
Sales increased steadily from January to March.
Correct Answer:
A
— Increasing
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Q. In the measurement 0.007890, how many significant figures are present?
Solution
The significant figures are 7, 8, 9, and 0, totaling 4 significant figures.
Correct Answer:
C
— 5
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Q. In the measurement 0.03040, how many significant figures are present?
Solution
In 0.03040, the leading zeros do not count, but the trailing zero after the decimal does. Therefore, there are 4 significant figures.
Correct Answer:
B
— 4
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Q. In the measurement 123.45, how many significant figures are present?
Solution
All digits in 123.45 are significant, giving a total of 5 significant figures.
Correct Answer:
C
— 5
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Q. In the measurement 150.0, how many significant figures are present?
Solution
The significant figures are 1, 5, and the trailing zero after the decimal point.
Correct Answer:
C
— 4
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Q. In the measurement 2500 kg, how many significant figures are there?
Solution
The number 2500 kg has two significant figures unless specified otherwise (e.g., with a decimal point).
Correct Answer:
A
— 2
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Q. In the mixed graph, if the x-axis represents time and the y-axis represents sales, what does a plateau in the graph indicate?
-
A.
Sales are increasing rapidly.
-
B.
Sales have stabilized after a period of growth.
-
C.
Sales are declining.
-
D.
Sales are highly variable.
Solution
A plateau indicates that sales have reached a stable point after previous growth.
Correct Answer:
B
— Sales have stabilized after a period of growth.
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Q. In the molecular orbital diagram of diatomic nitrogen (N2), which orbitals are filled first?
-
A.
σ2s, σ*2s
-
B.
σ2p, π2p
-
C.
π2p, σ2p
-
D.
σ*2p, π*2p
Solution
In N2, the 2s orbitals (σ2s and σ*2s) are filled before the 2p orbitals.
Correct Answer:
A
— σ2s, σ*2s
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Q. In the molecular orbital theory, which of the following is true for the π molecular orbitals?
-
A.
They are formed by end-to-end overlap.
-
B.
They are lower in energy than σ orbitals.
-
C.
They can accommodate a maximum of 2 electrons.
-
D.
They are always bonding.
Solution
π molecular orbitals can accommodate a maximum of 2 electrons, similar to all molecular orbitals.
Correct Answer:
C
— They can accommodate a maximum of 2 electrons.
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Q. In the molecular orbital theory, which of the following orbitals is lower in energy than the 2p orbitals?
Solution
The 2s molecular orbitals are lower in energy than the 2p molecular orbitals.
Correct Answer:
A
— 2s
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Q. In the molecular orbital theory, which of the following orbitals is lower in energy for homonuclear diatomic molecules?
-
A.
σ2p
-
B.
π2p
-
C.
σ2s
-
D.
π2s
Solution
The σ2s orbital is lower in energy than the π2p and σ2p orbitals in homonuclear diatomic molecules.
Correct Answer:
C
— σ2s
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Q. In the molecular orbital theory, which of the following orbitals is the highest energy in O2?
-
A.
σ2p
-
B.
π2p
-
C.
σ*2p
-
D.
π*2p
Solution
The highest energy orbital in O2 is σ*2p, which is an antibonding orbital.
Correct Answer:
C
— σ*2p
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Q. In the molecular orbital theory, which of the following orbitals is the highest occupied molecular orbital (HOMO) in O2?
-
A.
σ2p
-
B.
π2p
-
C.
σ*2p
-
D.
π*2p
Solution
In O2, the highest occupied molecular orbital (HOMO) is π2p.
Correct Answer:
B
— π2p
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Q. In the molecular orbital theory, which of the following pairs of orbitals can combine to form a sigma bond?
-
A.
s and p
-
B.
p and p
-
C.
s and s
-
D.
d and p
Solution
s and s orbitals can combine to form a sigma bond.
Correct Answer:
C
— s and s
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Q. In the molecular orbital theory, which orbitals combine to form sigma bonds?
-
A.
s and p orbitals
-
B.
p and d orbitals
-
C.
s orbitals only
-
D.
p orbitals only
Solution
Sigma bonds are formed by the head-on overlap of s and p orbitals.
Correct Answer:
A
— s and p orbitals
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Q. In the number 0.0004560, how many significant figures are present?
Solution
The leading zeros are not significant, but the trailing zero is significant. Therefore, it has 4 significant figures.
Correct Answer:
B
— 4
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Q. In the number 0.007890, how many significant figures are there?
Solution
The significant figures are 7, 8, 9, and the leading zeros are not counted.
Correct Answer:
C
— 5
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Q. In the number 2500, how many significant figures are there?
Solution
Without a decimal point, 2500 has 2 significant figures.
Correct Answer:
A
— 2
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Q. In the number 4500, how many significant figures are there?
Solution
4500 has 2 significant figures unless specified with a decimal point.
Correct Answer:
A
— 2
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Q. In the number 5000, how many significant figures are there?
Solution
5000 has 1 significant figure unless specified with a decimal point (e.g., 5000.).
Correct Answer:
A
— 1
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Q. In the passage, how does the author feel about the role of art in society?
-
A.
It is unnecessary
-
B.
It is essential
-
C.
It is overrated
-
D.
It is subjective
Solution
The author argues that art plays an essential role in society, contributing to cultural and emotional development.
Correct Answer:
B
— It is essential
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Q. In the passage, how does the author feel about the role of literature in society? (2023)
-
A.
Marginal
-
B.
Central
-
C.
Unnecessary
-
D.
Controversial
Solution
The author views literature as central to understanding human experiences and societal issues.
Correct Answer:
B
— Central
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