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Chemistry QUESTION #5531

For a reaction obeying the Arrhenius equation in the range $0°C < T < 300°C$: Plot I shows $k$ vs $E_a$ (decreasing curve), Plot II shows $k$ vs $T(°C)$ (increasing curve). Choose the correct option.

I is right but II is wrong
Both I and II are correct✔️
I is wrong but II is right
Both I and II are wrong

Correct Answer Logic:

From Arrhenius equation: $k = Ae^{-E_a/RT}$. As $E_a$ increases (at constant T), $k$ decreases — Plot I (k vs $E_a$ as a decreasing curve) is correct. As T increases (at constant $E_a$), $k$ increases exponentially — Plot II (k vs T as an increasing curve) is correct. Both plots are correct representations.

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Academic/Professional (Social Sciences) QUESTION #6501

Question 1702

The 'Malthusian Theory' is related to which field of sociology?

Urban Sociology
Demography✔️
Sociology of Religion
Criminology

Correct Answer Logic:

Thomas Malthus proposed theories regarding population growth and its relationship to food supply.

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Nursing QUESTION #9177

Question 1703

According to Douglas McGregor's Theory X and Theory Y, a manager who believes employees are inherently lazy and need constant supervision is applying:

Theory Y
Herzberg's Two-Factor Theory
Theory X✔️
Transformational leadership

Correct Answer Logic:

Douglas McGregor's Theory X and Theory Y (1960):

Theory X	Theory Y
Employees are inherently lazy	Employees are self-motivated
Dislike work and avoid it	Find work natural and satisfying
Need close supervision and control	Can be self-directed and creative
Motivate through punishment/rewards	Motivate through autonomy and responsibility

In nursing management, Theory X leads to authoritarian leadership, while Theory Y encourages participative management. Most modern nursing management advocates Theory Y to improve staff engagement and retention.

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Mathematics QUESTION #6937

Question 1704

If $\displaystyle\sum_{i=1}^{20} \left(\frac{{}^{20}C_{i-1}}{{}^{20}C_i + {}^{20}C_{i-1}}\right)^3 = \frac{k}{21}$, find $k$.

400
50
200✔️
100

Correct Answer Logic:

Use the identity: $\dfrac{{}^{20}C_{i-1}}{{}^{20}C_i + {}^{20}C_{i-1}} = \dfrac{{}^{20}C_{i-1}}{{}^{21}C_i} = \dfrac{i}{21}$

So the sum becomes: $\displaystyle\sum_{i=1}^{20}\left(\frac{i}{21}\right)^3 = \frac{1}{21^3}\sum_{i=1}^{20}i^3 = \frac{1}{21^3}\cdot\left(\frac{20\cdot21}{2}\right)^2 = \frac{(210)^2}{21^3} = \frac{44100}{9261} = \frac{200}{21}$

Therefore $k = \mathbf{200}$.

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Accounting & Finance QUESTION #6068

Question 1705

Budgeted data for 6,000 units:

Variable manufacturing: $90,000
Variable selling: $6,000
Fixed manufacturing: $54,000
Fixed admin: $21,000

Selling price is $40 unit. How many units must be sold to reach a target profit of $45,000?

3,960
4,125
4,800
5,000✔️

Correct Answer Logic:

1. Variable Cost per unit = ($90,000 + $6,000) / 6,000 = $16.
2. Contribution per unit = $40 - $16 = $24.
3. Total Fixed Costs = $54,000 + $21,000 = $75,000.
4. Required Units = (Fixed Costs + Target Profit) / Contribution = ($75,000 + $45,000) / $24 = 5,000 units.

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General Knowledge QUESTION #8861

Question 1706

In which year did Barack Hussein Obama receive the Nobel Peace Prize?

2008
2009✔️
2010
2011

Correct Answer Logic:

Obama received the Nobel Peace Prize in 2009.

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Civil / Architecture QUESTION #2366

Question 1707

In the context of Green Building design, the Overall Thermal Transfer Value (OTTV) is a metric used to evaluate:

The amount of heat generated by building occupants and equipment per unit floor area
The total heat gain through the building envelope (walls, roofs, and fenestration) per unit area of the building facade, used to set energy performance benchmarks✔️
The coefficient of performance (COP) of the HVAC system
The total solar radiation incident on the building roof per year

Correct Answer Logic:

OTTV (Overall Thermal Transfer Value, in W/m²) is an energy code metric used in tropical and subtropical regions (including ECBC in Pakistan/India) that quantifies the total heat gain through the building envelope per unit external wall area. It accounts for conduction through opaque walls, solar radiation through windows (WWR, SHGC), and conductive heat through glazing. A lower OTTV indicates a more thermally efficient building envelope.

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Accounting & Finance QUESTION #9655

Question 1708

Under the Stock and Debtors System, the Branch Adjustment Account is CREDITED with:

Branch expenses
Closing stock reserve (loading on closing stock)
Opening stock reserve (loading on opening stock)✔️
Branch stock shortages

Correct Answer Logic:

The Branch Adjustment Account is credited with: (1) loading on goods sent to branch (via Goods Sent to Branch A/c), (2) Branch Stock surplus, and (3) transfer of opening stock reserve. It is debited with: branch expenses, closing stock reserve, branch stock shortage, and the balancing profit/loss transferred to P&L.

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Chemistry QUESTION #4337

Question 1709

Methanol ($CH_3OH$) is produced by reduction of:

Formaldehyde ($HCHO$)✔️
Acetaldehyde ($CH_3CHO$)
Propanal ($C_2H_5CHO$)
Propanone ($CH_3COCH_3$)

Correct Answer Logic:

Reduction of formaldehyde ($HCHO$) by adding $H_2$ gives methanol ($CH_3OH$): $HCHO + H_2 \rightarrow CH_3OH$. Reduction of an aldehyde gives a primary alcohol.

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Urdu QUESTION #5270

Question 1710

امیر خسرو کی تحریک ان میں سے کس کا حصہ ہو سکتی ہے؟

ایہام گوئی کی تحریک
رومانوی تحریک
ترقی پسند تحریک
صوفیاء کی تحریک✔️

Correct Answer Logic:

امیر خسرو صوفی شاعر تھے اس لیے ان کی تحریک صوفیاء کی تحریک کا حصہ تھی۔

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General Knowledge QUESTION #8880

Question 1711

How many states are there in the United States of America?

50✔️
48
45
42

Correct Answer Logic:

There are 50 US states.

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General Knowledge QUESTION #4739

Question 1712

The Nobel Peace Prize for 2006 was awarded to which person?

Dr. Mahathir Mohammad
Dr. Muhammad Yunus✔️
Dr. Abdul Kalam
Dr. Mohamed ElBaradei

Correct Answer Logic:

Dr. Muhammad Yunus of Bangladesh, along with the Grameen Bank he founded, was awarded the 2006 Nobel Peace Prize for their efforts to create economic and social development through microcredit.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3105

Question 1713

The fluid portion of the blood after it has clotted is called:

Plasma
Serum✔️
Lymph
Cytosol

Correct Answer Logic:

Serum is plasma without the clotting factors (like fibrinogen).

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Biology QUESTION #7253

Question 1714

In gymnosperms, the pollen chamber represents:

The microsporangium in which pollen grains develop
A cell in the pollen grain in which the sperms are formed
A cavity in the ovule in which pollen grains are stored after pollination✔️
An opening in the megagametophyte through which the pollen tube approaches the egg

Correct Answer Logic:

The pollen chamber in gymnosperms is a cavity formed in the nucellus of the ovule where pollen grains are deposited after pollination. It is a temporary chamber that forms by degeneration of nucellar cells near the micropyle. From here, pollen grains germinate and the tube grows toward the archegonia.

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General Knowledge QUESTION #284

Question 1715

The 2023 SDG Summit took place in September 2023 in:

New York✔️
Washington DC
Chicago
None of these

Correct Answer Logic:

The summit was held at the UN Headquarters in New York.+1

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Math (Module-1) QUESTION #5379

Question 1716

The provided illustration displays a system consisting of a linear equation and a nonlinear equation. Based on the visual, what is the solution $(x, y)$ for this specific system?

$(0, 0)$
$(0, 4)$
$(4, 5)$✔️
$(5, 0)$

Correct Answer Logic:

The solution to a system is the point where the two graphs intersect. In the graph, the line and the curve meet at the point $(4, 5)$.

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General Knowledge QUESTION #8825

Question 1717

Which country has been declared a 'major non-NATO ally' of the United States?

Turkey
Pakistan✔️
India
Italy

Correct Answer Logic:

Pakistan is a major non-NATO ally.

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Civil Procedure QUESTION #3697

Question 1718

A plaintiff sues a defendant in federal court. After the plaintiff rests at trial, the defendant moves for JMOL under Rule 50(a). The judge denies the motion. The defendant then presents evidence and rests. The jury returns a verdict for the plaintiff. The defendant does NOT file a renewed JMOL within 28 days. Can the defendant challenge the sufficiency of the evidence on appeal?

Yes, because the Rule 50(a) motion preserved the issue.
No, a post-verdict motion under Rule 50(b) is required to preserve a challenge to the sufficiency of the evidence on appeal.✔️
Yes, under the plain error doctrine.
No, unless the judge specifically invited an appeal.

Correct Answer Logic:

According to the Supreme Court in Unitherm Food Systems, Inc. v. Swift-Eckrich, Inc., a party's failure to file a Rule 50(b) motion post-verdict precludes an appellate court from reviewing the sufficiency of the evidence.

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Therapeutics and Patient Care QUESTION #3913

Question 1719

Which of the following recommendations regarding aciclovir use for herpes zoster (shingles) is LEAST appropriate?

It will be less effective if started more than 72 hours after the onset of the rash
It will reduce the duration of herpes zoster related pain
It should be taken five times a day for 7 days
Fluid intake should be kept to a minimum during the course of treatment✔️

Correct Answer Logic:

Patients taking aciclovir should maintain adequate hydration, as the drug can crystallise in renal tubules causing nephrotoxicity. Restricting fluid intake is dangerous and incorrect.

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General Knowledge QUESTION #4751

Question 1720

WAFA is the official news agency of which entity?

Syria
Jordan
Egypt
Palestine✔️

Correct Answer Logic:

WAFA (Wakalat Anba'a Falastiniyya) is the official Palestinian news agency, established in 1972 and operating under the Palestinian Authority.

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