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Chemistry QUESTION #471

Question 4541

Acetic acid is called __________ acid.

Methanoic
Propanoic
Ethanoic✔️
Butanoic

Correct Answer Logic:

Acetic acid is ethanoic acid

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Law QUESTION #9498

Question 4542

A challenge is raised against a decree passed by a trial Court on the ground that the trial Judge was biased and the proceedings were vitiated by fraud practised upon the Court. The aggrieved party seeks to file a separate suit to set aside the decree. Is such a separate suit maintainable?

Yes; but only within three years of discovery of the fraud
No; where a person challenges the validity of a judgment, decree or order on the plea of fraud, misrepresentation, or want of jurisdiction, the remedy is to make an application to the Court which passed the final judgment and not by a separate suit✔️
Yes; any decree obtained by fraud can be challenged by a separate suit at any time
No; only the High Court can set aside a decree for fraud

Correct Answer Logic:

Section 12(2) CPC, as inserted by the 1980 Ordinance, expressly bars a separate suit to challenge a decree on grounds of fraud, misrepresentation, or want of jurisdiction. The aggrieved party must apply to the very Court that passed the decree. This prevents the multiplicity of collateral attacks through fresh suits.

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Biology Zoology Botany QUESTION #1386

Question 4543

The tallest living plant species belongs to the group of:

Pteridophytes
Angiosperms
Gymnosperms✔️
Bryophytes

Correct Answer Logic:

The tallest living plant species is the coast redwood (Sequoia sempervirens), which belongs to Gymnosperms (specifically the family Cupressaceae). The tallest known individual, named Hyperion, stands at about 115.9 metres. Gymnosperms include conifers, cycads, and ginkgo — many of which are among the tallest and oldest living organisms.

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Quantitative Reasoning QUESTION #8133

Question 4544

Only by ignoring years of mismanagement and inefficiency could investors believe that a new injection of capital would provide anything other than a _______ solution to the company's financial problems.
(Select the best word. Note: two words produce sentences alike in meaning — choose the most accurate.)

fleeting✔️
complete
premature
trivial

Correct Answer Logic:

The sentence implies that without fixing underlying problems, any cash injection would only work temporarily. Fleeting (lasting only a short time) is the best fit — a stopgap, not a real fix. 'Momentary' would also work (these two are the synonym pair in the original). 'Complete' is the opposite of what's implied. 'Premature' means too early, not temporary. 'Trivial' means insignificant, not temporary.

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MCQs Section QUESTION #4462

Question 4545

درست جملہ بتائیں۔ (Identify the correct sentence)

وہ دن بدن پتلا ہوتا جا رہا ہے۔
وہ دان بدن میں پتلا ہوتا جا رہا ہے۔
وہ روز بروز پتلا ہو تا جا رہا ہے۔✔️
ان میں کوئی نہیں۔

Correct Answer Logic:

While 'din ba din' is common in speech, 'roz baroz' is considered the grammatically superior expression in formal Urdu for 'day by day'.

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Islamic Studies QUESTION #8225

Question 4546

What are Ushr and Khums?

Two months of Islamic Calender
Two kinds of Tax in Islam✔️
Two prominent warriors of Islam
None of these

Correct Answer Logic:

Ushr and Khums are two types of Islamic taxes. Ushr is a 10% (or 5% if irrigated) agricultural tax on produce from land. Khums literally means 'one-fifth' and is a 20% tax on war booty, treasure troves, and certain types of income. These Islamic fiscal policies ensure wealth distribution and support the state treasury (Bayt al-Mal) to help the poor and fund public welfare.

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Academic/Professional (Social Sciences) QUESTION #10091

Question 4547

Durkheim's 'organic solidarity' emerges primarily due to:

Shared collective conscience
Increased division of labour and interdependence✔️
Tribal kinship ties
Religious uniformity

Correct Answer Logic:

Organic solidarity develops from interdependence created by a complex division of labour.

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Physics QUESTION #1057

Question 4548

A sphere of radius \(R\) is cut from a larger sphere of radius \(2R\). Ratio of moment of inertia of smaller sphere to rest part about Y-axis:

\(\dfrac{7}{57}\)
\(\dfrac{7}{64}\)
\(\dfrac{7}{8}\)
\(\dfrac{7}{40}\)✔️

Correct Answer Logic:

Let density \(=\rho\). Mass of large sphere: \(M=\frac{4}{3}\pi(2R)^3\rho=\frac{32\pi R^3\rho}{3}\). Mass of small sphere: \(m=\frac{4}{3}\pi R^3\rho=\frac{M}{8}\). \(I_{small}=\frac{2}{5}mR^2\). Small sphere center is at \(R\) from Y-axis (it's cut from side). \(I_{small,Y}=\frac{2}{5}mR^2+mR^2=\frac{7mR^2}{5}\). \(I_{large,Y}=\frac{2}{5}M(2R)^2=\frac{8MR^2}{5}\). \(I_{rest}=I_{large}-I_{small,Y}=\frac{8MR^2}{5}-\frac{7mR^2}{5}=\frac{8MR^2-7(M/8)R^2}{5}=\frac{MR^2(8-7/8)}{5}=\frac{57MR^2}{40}\). Ratio \(=\frac{7mR^2/5}{57MR^2/40}=\frac{7M/5\times40}{8\times57M}=\frac{7\times40}{5\times8\times57}=\frac{280}{2280}=\frac{7}{57}\).

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Islamic Studies QUESTION #628

Question 4549

Meaning of the word "Zakat" is:

To Purify✔️
To Pay
To Sacrifice
To Clean

Correct Answer Logic:

Literally, Zakat means "to purify" or "to grow".

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Accounting & Finance QUESTION #6087

Question 4550

Which statements regarding debenture interest are true?

The interest rate is always higher than the dividend per share.
Interest is recorded in the statement of changes in equity.
Interest is paid before dividends are distributed to ordinary shareholders.
Interest must be paid even if the company makes a loss.

1, 2 and 3
1, 3 and 4
2 and 3 only
3 and 4 only✔️

Correct Answer Logic:

Debenture interest is a charge against profit (expense), not an appropriation in the statement of changes in equity. It must be paid regardless of profit/loss and always before dividends. Statement 1 is not necessarily true.

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MBBS QUESTION #10278

Question 4551

The muscle spindle, an intrafusal stretch receptor embedded within skeletal muscle, primarily detects:

Active muscle tension generated during contraction, protecting against overload
Changes in muscle length and the velocity of that change, triggering the monosynaptic stretch reflex✔️
Joint position exclusively, with no role in muscle length sensing
Cutaneous pressure and touch

Correct Answer Logic:

Muscle spindles are specialized to detect muscle length and the rate of length change (stretch), triggering reflex contraction to resist stretch (stretch reflex) — in contrast to Golgi tendon organs, located in series with muscle fibers at the musculotendinous junction, which sense muscle tension and mediate the protective inverse stretch reflex.

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MBBS QUESTION #10348

Question 4552

The hexose monophosphate (pentose phosphate) shunt is particularly important in red blood cells because its primary product, NADPH, is used to:

Generate additional ATP for the Na+/K+-ATPase pump
Maintain reduced glutathione, which protects red cell membranes and proteins (including hemoglobin) from oxidative damage✔️
Provide additional glucose substrate for glycolysis
Generate ketone bodies for cellular energy

Correct Answer Logic:

NADPH produced by the HMP shunt (via glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase) maintains reduced glutathione, which neutralizes reactive oxygen species; its deficiency (as in G6PD deficiency) leaves red cells vulnerable to oxidative injury and hemolysis.

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Boilers Mechanical Engineering QUESTION #2423

Question 4553

The Biot number (Bi) in transient heat conduction is defined as \(Bi = hL_c/k\). It represents:

Convective resistance at surface divided by conductive resistance inside body
Internal conductive resistance to external convective resistance: \(Bi = hL_c/k = \frac{L_c/(kA)}{1/(hA)}\)✔️
Thermal diffusivity to kinematic viscosity
Inertial forces to viscous forces

Correct Answer Logic:

Biot number: \(Bi=hL_c/k\), the ratio of internal conductive resistance \(L_c/(kA)\) to external convective resistance \(1/(hA)\). When \(Bi\ll 0.1\), the lumped capacitance method is valid.

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Math Physics Chemistry Biology QUESTION #4320

Question 4554

Which one of the following biomolecules is a polymer (polysaccharide)?

Sucrose
Pentose
Lactose
Glycogen✔️

Correct Answer Logic:

Glycogen is a polysaccharide (polymer of glucose) that serves as the main carbohydrate storage in animals. Sucrose and lactose are disaccharides; pentose is a monosaccharide.

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Security Measures to Maintain Law and Order QUESTION #890

Question 4555

"Crowd Control" during a flight delay is a measure to maintain law & order primarily falling under:

Aviation Safety
Aviation Security✔️
Terminal Management
Public Relations

Correct Answer Logic:

Managing large, frustrated groups is a security function to prevent riots or breaches into the airside.

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Islamic Studies QUESTION #7611

Question 4556

پہلی حج اسلام میں کس ہجری میں ادا کی گئی؟

8 ہجری
9 ہجری✔️
10 ہجری
11 ہجری

Correct Answer Logic:

9 ہجری میں حج فرض ہوا اور نبی کریم ﷺ نے اسی سال حج ادا فرمایا جسے حجۃ الوداع کہا جاتا ہے۔

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English QUESTION #8500

Question 4557

The antonym of FRUGAL is:

Funny
Simple
Spendthrift✔️
Economical

Correct Answer Logic:

Frugal means thrifty; opposite is spendthrift (wasteful).

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Disaster Management QUESTION #6550

Question 4558

What represents the primary value of integrating indigenous knowledge into risk assessments?

It's free
It provides local context, historical hazard patterns, traditional coping mechanisms, and community-validated understanding of risks✔️
It replaces scientific data
It satisfies stakeholders

Correct Answer Logic:

Section 5.1 emphasizes integrating indigenous knowledge with scientific assessments. Local communities possess generations of observations about hazard patterns, environmental changes, and effective coping strategies that complement but don't replace scientific data.

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