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Pakistan Affairs QUESTION #598

Question 3661

Pakistan became Member of the UN General Assembly in:

September 1947✔️
January 1948
September 1948
None of These

Correct Answer Logic:

Pakistan joined the United Nations on September 30, 1947.

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Statistics QUESTION #1980

Question 3662

The Poisson distribution is derived as the limiting form of the Binomial distribution when:

n is small and p is large
n is large, p is small, and $np = \lambda$ remains constant✔️
n and p both approach zero
n is fixed and p approaches 0.5

Correct Answer Logic:

The Poisson distribution arises as $n \to \infty$ and $p \to 0$ such that $\lambda = np$ remains a finite constant. Under these conditions, $\binom{n}{x}p^x(1-p)^{n-x} \to \dfrac{e^{-\lambda}\lambda^x}{x!}$.

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Biology Zoology Botany QUESTION #1338

Question 3663

Which co-enzyme is NOT involved in oxidative decarboxylation of pyruvic acid?

CoA-SH
$\text{Mg}^{2+}$
Biotin✔️
None of these

Correct Answer Logic:

The oxidative decarboxylation of pyruvate to acetyl-CoA (by pyruvate dehydrogenase complex) requires five coenzymes: CoA-SH, NAD$^+$, FAD, TPP (thiamine pyrophosphate), and lipoic acid. $\text{Mg}^{2+}$ serves as a cofactor for the enzyme. Biotin is NOT involved — it is a cofactor for carboxylation reactions (e.g., pyruvate carboxylase), not decarboxylation.

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Chemistry QUESTION #4342

Question 3664

Number of unpaired electrons in Boron ($B$) in ground state is/are:

1✔️
2
3
4

Correct Answer Logic:

Boron has atomic number 5. Its electronic configuration is $1s^2\ 2s^2\ 2p^1$. The single electron in the $2p$ orbital is unpaired, so there is $\mathbf{1}$ unpaired electron.

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English QUESTION #2681

Question 3665

Choose the correct preposition: 'The plane flew ___ the mountains.'

over✔️
on
in
at

Correct Answer Logic:

'Over' is used to indicate movement at a higher level than something else.

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General Science and Ability QUESTION #203

Question 3666

Process of adding vitamins to milk is known as:

Flavoring
Fortification✔️
Fermentation
None of these

Correct Answer Logic:

Fortification is the practice of deliberately increasing the content of essential micronutrients.

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Urdu QUESTION #5262

Question 3667

اردو لغت بورڈ کا صدر دفتر کہاں واقع ہے؟

کراچی✔️
لاہور
اسلام آباد
ان میں سے کوئی نہیں

Correct Answer Logic:

اردو لغت بورڈ کا صدر دفتر کراچی میں ہے جہاں اردو کا عظیم لغت مرتب کیا گیا۔

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Security Measures to Maintain Law and Order QUESTION #897

Question 3668

"Landside Security" measures primarily focus on maintaining order in:

The Runway
The Cockpit
Public areas & Car parks✔️
The Cargo hold

Correct Answer Logic:

Landside refers to areas open to the public; maintaining order here is key to preventing attacks before the security checkpoint.

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Physics and Math QUESTION #788

Question 3669

A dice is rolled, what is the probability of getting a number greater than 4?

$\dfrac{1}{4}$
$\dfrac{1}{3}$✔️
$\dfrac{1}{2}$
$\dfrac{1}{6}$

Correct Answer Logic:

Numbers greater than 4: {5, 6} → 2 outcomes out of 6. Probability $= \dfrac{2}{6} = \dfrac{1}{3}$.

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Islamic Studies QUESTION #644

Question 3670

During the Second Pledge of al-'Aqaba, ________ men and two women offered an oath of allegiance to the Prophet Muhammad (ﷺ).

73✔️
63
83
None of these

Correct Answer Logic:

73 men and 2 women from Madina took the second pledge at Aqaba.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3186

Question 3671

During 'Depolarization' of an action potential, which ion rushes into the cell?

$K^+$
$Na^+$✔️
$Ca^{2+}$
$Cl^-$

Correct Answer Logic:

Opening of voltage-gated sodium channels allows $Na^+$ to enter, making the membrane potential more positive.

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Basic Mathematics QUESTION #2867

Question 3672

Which of the following is a prime number?

21
27
31✔️
33

Correct Answer Logic:

A prime number is only divisible by $1$ and itself. $31$ has no other factors.

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Biology QUESTION #4265

Question 3673

Kidneys perform their osmoregulatory role under the effect of Antidiuretic Hormone (ADH). Which type of urine is produced?

Hypotonic urine with decreased volume
Hypotonic urine with increased volume
Hypertonic urine with decreased volume✔️
Hypertonic urine with increased volume

Correct Answer Logic:

ADH increases water reabsorption in the collecting ducts, resulting in concentrated (hypertonic) urine with decreased volume.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3064

Question 3674

What is 'Micromeritics'?

The study of bacteria
The study of small particles✔️
The study of computer chips
The study of surgical tools

Correct Answer Logic:

Micromeritics is the science and technology of small particles.

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Professional QUESTION #1832

Question 3675

Section 10 of the Civil Servants Act 1973 governs posting and transfer. Where a civil servant is required to serve in a post OUTSIDE his service or cadre, what protection is guaranteed regarding his pay?

His pay shall be enhanced by a special allowance
His pay shall be fixed at the scale of the new post
His terms and conditions as to pay shall not be less favourable than those he would have been entitled to had he not been required to serve outside his cadre✔️
His pay shall be determined by the authority ordering the transfer

Correct Answer Logic:

The second proviso to Section 10 protects the financial interests of a civil servant posted outside his service or cadre by ensuring his terms and conditions as to pay shall not be less favourable than those to which he would have been entitled had he not been required to serve outside his cadre.

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Islamic Studies QUESTION #648

Question 3676

The duration of the Khilafat of Hazrat Umar (رضي الله عنه) was:

10 years 5 months✔️
11 years
12 years
None of these

Correct Answer Logic:

His caliphate lasted approximately 10 years and 6 months (634–644 CE).

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Agronomy QUESTION #2097

Question 3677

Phosphorus cycling in agricultural soils differs fundamentally from nitrogen cycling because:

Phosphorus has a significant atmospheric reservoir like nitrogen
Phosphorus has no atmospheric reservoir — it cycles exclusively through soil-plant-organic matter pathways, and its availability is controlled by soil pH-dependent precipitation/dissolution reactions and biological mineralization of organic P✔️
Phosphorus is more mobile in soils than nitrogen and prone to leaching in all soil types
Phosphorus transformations are driven by the same microbial guilds (Nitrosomonas, Nitrobacter) that drive nitrogen cycling

Correct Answer Logic:

Unlike N (atmospheric reservoir, gaseous transformations), P cycles in a closed soil-plant system with no atmospheric component. Soil P exists as: soil solution P (plant-available, <1 ppm), labile P (loosely sorbed), non-labile P (strongly sorbed/precipitated), and organic P. Availability is highly pH-dependent: maximum at pH 6.0–6.5; precipitated as Ca-phosphates at high pH and Fe/Al-phosphates at low pH.

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English QUESTION #4451

Question 3678

Which of the following sentences is CORRECT?

Payments can be made by cheque or in money
We need a nice and quiet place for a picnic.✔️
We stopped by a large wood to admire the nature.
None of these

Correct Answer Logic:

Option B is perfectly natural English. A should be 'in cash', and C should not have 'the' before 'nature'.

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Agronomy QUESTION #2091

Question 3679

Heat stress during grain filling in wheat causes yield loss primarily through:

Delayed heading and extended vegetative growth phase
Accelerated leaf senescence, shortened grain-filling duration, and reduced starch synthase enzyme activity — resulting in smaller, shriveled grains with lower test weight even when adequate assimilates are available✔️
Increased tiller mortality and reduced spike number
Enhanced water use reducing soil moisture below wilting point

Correct Answer Logic:

Heat stress (>30°C during grain filling) directly impairs starch biosynthesis: starch synthase is heat-labile, losing activity above 30°C. This shortens effective grain-filling duration (fewer days × lower daily fill rate), producing small, shriveled grains. Agronomic responses include early planting (escape strategy), irrigation to reduce canopy temperature, and selection of heat-tolerant varieties with thermostable starch synthase.

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Tourism & Hospitality Management QUESTION #1628

Question 3680

In the Event Management course, the 'AIDA' framework referenced under feasibility analysis refers to which concept?

An advanced inventory and distribution assessment for event catering
A marketing communication model: Attention, Interest, Desire, and Action — used to structure event marketing and promotional strategy✔️
A financial analysis tool: Assets, Income, Debt, and Allocation
A risk assessment tool: Assessment, Identification, Decision, and Action

Correct Answer Logic:

The Event Management course (Module 2: Concept & Design) lists AIDA alongside SWOT, PEST, and SMART as feasibility and analytical tools used in event planning. AIDA (Attention, Interest, Desire, Action) is a foundational marketing communication model that guides how promotional messages for events are structured to move audiences from awareness to ticket purchase or attendance.

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