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Math Physics Chemistry Biology QUESTION #7776
Question 1

The ester formed from a fatty acid and a long-chain alcohol is called:

  • Acylglycerol
  • Glycerol
  • Phospholipid
  • Waxโœ”๏ธ
Correct Answer Logic:

Waxes are esters of long-chain fatty acids with long-chain alcohols. Acylglycerols (fats/oils) are esters with glycerol. Phospholipids have a phosphate group.

Uploaded by: Fani Warraich
Islamic Studies QUESTION #8226
Question 2
What caused Hazrat Usman's (R.A.) death?
  • he died in a battlefield
  • he was martyred by rebelsโœ”๏ธ
  • he died a natural death
  • None of the above
Correct Answer Logic:
Hazrat Usman (RA) was martyred by rebels on 18 Dhul Hijjah 35 AH (June 656 CE) while reciting the Quran in his home in Medina. He was 82 years old and had been Caliph for 12 years. A group of rebels from Egypt, Kufa, and Basra laid siege to his house and eventually broke in and killed him. His martyrdom was a tragic event that led to the first major civil conflict (fitna) in Islamic history.
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Civil Procedure QUESTION #5683
Question 3
A plaintiff files a notice of voluntary dismissal under Rule 41(a)(1)(A)(i). When is this dismissal with prejudice?
  • Always, unless the notice states otherwise.
  • Never, voluntary dismissals are always without prejudice.
  • If the plaintiff has previously dismissed any federal- or state-court action based on or including the same claim.โœ”๏ธ
  • Only if the court orders it so.
Correct Answer Logic:
Rule 41(a)(1)(B) contains the 'two-dismissal rule': if the plaintiff has previously dismissed any action based on the same claim, a second notice of dismissal operates as an adjudication on the merits (with prejudice).
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Chemistry QUESTION #7198
Question 4
Identify the most stable carbocation among the following species.
  • $(CH_{3})_{3}C^{+}$โœ”๏ธ
  • $CH_{3}CH_{2}^{+}$
  • $CH_{3}^{+}$
  • $(CH_{3})_{2}CH^{+}$
Correct Answer Logic:

The stability of carbocations follows the order: $3^{\circ} > 2^{\circ} > 1^{\circ} > \text{methyl}$.

  • $(CH_{3})_{3}C^{+}$ is a tertiary ($3^{\circ}$) carbocation. It is the most stable due to the maximum inductive effect (+I) and hyperconjugation from the nine $\alpha$-hydrogens[cite: 3, 49].
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Psychology QUESTION #9861
Question 5
The overall bodily and mental growth curves for men:
  • Diverge at puberty age
  • Run parallel coursesโœ”๏ธ
  • Show a drop at puberty age
  • Both run parallel and diverge at puberty
Correct Answer Logic:
Physical and mental growth trajectories broadly run parallel courses, both showing gradual increases through childhood and adolescence, with physical growth plateauing earlier than cognitive development.
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Correct Answer Logic:
Based on logical deduction of positions, H1 is the only landmark satisfying the condition of being the southernmost with at least two hills to its east.
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Pakistan Affairs QUESTION #285
Question 7
Why Arab rule could not extend beyond Sindh and Multan?
  • Geographical barriers and rigid terrain
  • Strong resistance from local rulersโœ”๏ธ
  • Lack of interest in territorial expansion
  • Internal conflicts among the Arabs
Correct Answer Logic:
Strong resistance from local Hindu dynasties like the Gurjara-Pratiharas halted further Arab expansion.+1
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MCQs Section QUESTION #4875
Question 8
Correct antonym of "DEMOGRAPHIC" is
  • Relating to the study of population
  • Demons
  • Communications
  • Governmentโœ”๏ธ
Correct Answer Logic:
Demographic relates to the structure of a population. Among the options, 'government' represents a contrasting concept focusing on political authority rather than population data.
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Correct Answer Logic:
Formula: Total orbitals in shell \(n\) = \(n^2\)

For \(n = 4\): \(4^2 = 16\) orbitals

Breakdown:
  • 4s: 1 orbital
  • 4p: 3 orbitals
  • 4d: 5 orbitals
  • 4f: 7 orbitals
  • Total = 1+3+5+7 = 16
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Pakistan Affairs QUESTION #9054
Question 10
The Governor of a province in Pakistan is appointed by:
  • The Prime Minister
  • The Chief Minister
  • The Presidentโœ”๏ธ
  • The National Assembly
Correct Answer Logic:
The President appoints Governors on the advice of the Prime Minister.
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Correct Answer Logic:
Power of lenses in contact adds: \(P_{total}=4p\). For magnification: lenses in contact act as one system, but if we consider each lens magnifying, total magnification \(= m\times m\times m\times m = m^4\). Answer: 4p and \(m^4\).
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Math Physics Chemistry Biology QUESTION #4216
Question 12
Which organelle serves as a packaging and a distribution center for molecules within the cells?
  • Golgi apparatusโœ”๏ธ
  • Mitochondria
  • Ribosome
  • Vacuole
Correct Answer Logic:
Golgi apparatus packages and distributes molecules.
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English QUESTION #4459
Question 13
Which of the following sentences is INCORRECT?
  • Although it rained a lot, they enjoyed themselves.
  • It rained a lot, but they enjoyed themselves.
  • Despite of the rain, they enjoyed themselves.โœ”๏ธ
  • None of these
Correct Answer Logic:
The word 'Despite' is a preposition that should never be followed by 'of'. The correct phrase is either 'Despite the rain' or 'In spite of the rain'.
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Correct Answer Logic:
2
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Library Sciences QUESTION #1518
Question 15
A 'trade bibliography' such as Books in Print serves which primary function?
  • Listing all manuscripts held in national archives
  • Identifying and verifying books that are currently available for purchaseโœ”๏ธ
  • Providing biographical data about authors
  • Indexing journal articles in a subject field
Correct Answer Logic:
Trade bibliographies like Books in Print list books currently available for purchase from publishers and booksellers. They are essential tools for acquisitions librarians, booksellers, and anyone verifying the commercial availability of a title.
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Accounting & Finance QUESTION #1230
Question 16
When the market's required rate of return for a bond is much less than its coupon rate, the bond is selling at:
  • A premiumโœ”๏ธ
  • A discount
  • Cannot be determined without more information
  • Face value
Correct Answer Logic:
When the market's required rate of return (yield) is less than the bond's coupon rate, investors are willing to pay more than face value for the bond because it offers above-market interest payments. The bond therefore sells at a premium (price > face value). Conversely, when yield > coupon rate, the bond sells at a discount.
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Correct Answer Logic:
Rule 46(1) mandates that all procuring agencies shall maintain a record of their respective procurement proceedings along with all associated documentation for a minimum period of five years, subject to any additional regulations framed in this regard.
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Electrical Engineering QUESTION #2139
Question 18
A $4$-pole induction motor is supplied by a $50\text{ Hz}$ source. If the slip $s$ is $0.04$, what is the actual speed of the rotor $N_r$ in RPM?
  • $1500\text{ RPM}$
  • $1440\text{ RPM}$โœ”๏ธ
  • $1410\text{ RPM}$
  • $1560\text{ RPM}$
Correct Answer Logic:
Synchronous speed $N_s = \frac{120f}{P} = \frac{120 \times 50}{4} = 1500\text{ RPM}$. Rotor speed $N_r = N_s(1 - s) = 1500(1 - 0.04) = 1440\text{ RPM}$.
Uploaded by: Fani Warraich
Chemistry QUESTION #7401
Question 19
The strongest oxidising agent among the following halogens is:
  • \(\text{Cl}_2\)
  • \(\text{F}_2\)โœ”๏ธ
  • \(\text{Br}_2\)
  • \(\text{I}_2\)
Correct Answer Logic:
Oxidising power of halogens: Decreases down the group โ€” Fโ‚‚ > Clโ‚‚ > Brโ‚‚ > Iโ‚‚

Fโ‚‚ is the strongest oxidising agent because:
  • Highest electronegativity
  • Lowest bond dissociation energy among halogens (easy to break Fโ€“F)
  • Highest electron affinity when bond breaking is factored in
  • F has no d-orbitals, preventing back bonding
Fโ‚‚ can even oxidise noble gases like Xe and Kr.
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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5786
Question 20
The 'Risk' in a pharmacy setting is best defined as:
  • Potential harm
  • Likelihood of injuryโœ”๏ธ
  • A hazard
  • An accident
Correct Answer Logic:
Risk is defined as the likelihood that injury or damage will occur[cite: 7].
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