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Chemistry QUESTION #1453
Question 1
Which of the following has the highest dipole moment?
  • \(\text{CO}_2\)
  • \(\text{H}_2\text{O}\)✔️
  • \(\text{CCl}_4\)
  • None of these
Correct Answer Logic:
Dipole moment depends on both bond polarity and molecular geometry. \(\text{CO}_2\) is linear — two equal and opposite C=O bond dipoles cancel → \(\mu = 0\). \(\text{CCl}_4\) is tetrahedral — four C–Cl dipoles cancel → \(\mu = 0\). \(\text{H}_2\text{O}\) is bent (V-shaped) with bond angle ~104.5° — the two O–H bond dipoles do NOT cancel, giving a net dipole moment of \(\mu \approx 1.85\) D, the highest among the options.
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Correct Answer Logic:
The engagement letter is used specifically with independent auditors to document the agreed-upon terms of the audit relationship. It records the mutual understanding between the audit committee and the independent auditor, and formally establishes the auditor's responsibility, accountability, and authority to conduct the engagement.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3240
Question 3
Which molecule acts as the 'Primary Driver' for the diffusion of oxygen from alveoli into the blood?
  • Partial pressure gradient of $O_2$✔️
  • Active transport proteins
  • Water pressure
  • Blood sugar levels
Correct Answer Logic:
Gases move from areas of high partial pressure to low partial pressure.
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Biomedical Sciences QUESTION #3800
Question 4
What is the physiological effect of parathyroid hormone (PTH) on calcium and phosphate metabolism?
  • Increased mobilisation of calcium from bone✔️
  • Decreased renal tubular reabsorption of calcium
  • Decreased resorption of phosphate from bone
  • Decreased excretion of phosphate
Correct Answer Logic:
PTH raises serum calcium by stimulating osteoclastic bone resorption, increasing renal tubular calcium reabsorption, and promoting renal phosphate excretion.
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Correct Answer Logic:
Row-reducing the augmented matrix leads to the condition \((a^2-14-\text{something})z=a+2-\text{something}\). The coefficient of \(z\) in the last row becomes \(a^2-14+\frac{14}{7}\cdot...\). After elimination: \((a^2-4)z=(a-2)\) in the last equation. For infinite solutions: coefficient and RHS both zero: \(a^2-4=0\Rightarrow a=\pm2\) and \(a-2=0\Rightarrow a=2\). So infinite solutions at \(a=2\); no solution at \(a=-2\).
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Math Physics Chemistry Biology QUESTION #4203
Question 6
Decreased level of FSH hormone during menstrual cycle triggers the release of:
  • hcg
  • LH✔️
  • Oxytocin
  • progesterone
Correct Answer Logic:
Decreased FSH during menstrual cycle triggers LH surge.
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Correct Answer Logic:
William F. Ogburn introduced the concept of 'cultural lag' in his 1922 work 'Social Change.' It describes the period of maladjustment when non-material culture (values, norms, laws, institutions) fails to adapt quickly enough to keep up with changes in material culture and technology, causing social disorganization.
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Correct Answer Logic:
After expressions like 'It is important that', 'It is necessary that', we use the subjunctive mood, which requires the base form of the verb without 's'. So 'tell' (not 'tells') is correct.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3104
Question 9
'Systolic' blood pressure refers to the pressure when the:
  • Heart is relaxing
  • Ventricles are contracting✔️
  • Atria are filling
  • Blood is stagnant
Correct Answer Logic:
Systole is the phase of contraction; diastole is the phase of relaxation.
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General Knowledge QUESTION #8900
Question 10
The main function of the kidneys is:
  • To control blood pressure
  • To control blood temperature
  • To remove waste products from blood✔️
  • To help in digestion
Correct Answer Logic:
Kidneys filter waste from blood.
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Physics QUESTION #412
Question 11
Which of the following has the highest resistivity?
  • Germanium
  • Silver✔️
  • Copper
  • Platinum
Correct Answer Logic:
Among these, Germanium has highest resistivity (semiconductor)
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Chemistry QUESTION #4362
Question 12
Terminal alkynes show acidic character due to:
  • Terminal carbon atoms are $sp$ hybridized✔️
  • Terminal carbon atoms are $sp^2$ hybridized
  • Terminal carbon atoms are $sp^3$ hybridized
  • Terminal carbon atoms show hydrogen bonding
Correct Answer Logic:
In terminal alkynes ($R-C\equiv CH$), the terminal carbon is $sp$ hybridized (50% s-character). Higher s-character means the bonding electrons are held closer to the nucleus, making the $C-H$ bond more polar and the hydrogen more acidic ($pK_a \approx 25$).
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Geography QUESTION #1241
Question 13
Moraine dragged along the sides of a glacier is called:
  • Lateral✔️
  • Medial
  • Ground
  • None of these
Correct Answer Logic:
Lateral moraine is the ridge of rock debris (till) that accumulates along the sides (margins) of a valley glacier. It consists of material eroded from the valley walls by the glacier's movement. Medial moraine forms in the middle of a glacier where two glaciers merge. Ground moraine is deposited beneath the glacier.
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Islamic Studies QUESTION #7617
Question 14
تلمود (Talmud) کس مذہب کی مقدس کتاب ہے؟
  • ہندو
  • یہودی✔️
  • عیسائی
  • بدھ مت
Correct Answer Logic:
تلمود یہودی مذہب کی ایک اہم کتاب ہے جو مشنا اور جمارا پر مشتمل ہے، اور یہ تورات کے بعد دوسری اہمیت رکھتی ہے۔
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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3038
Question 15
What is the standard condition for autoclaving (Pressure and Temperature)?
  • $15\text{ psi}$ at $121^\circ\text{C}$ for $15\text{ mins}$✔️
  • $10\text{ psi}$ at $100^\circ\text{C}$ for $30\text{ mins}$
  • $20\text{ psi}$ at $150^\circ\text{C}$ for $5\text{ mins}$
  • $0\text{ psi}$ at $80^\circ\text{C}$ for $1\text{ hour}$
Correct Answer Logic:
Standard autoclaving is $121^\circ\text{C}$ ($15\text{ psi}$) for at least $15$ minutes.
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Correct Answer Logic:
Rule 60(b)(3) allows a court to relieve a party from a final judgment, order, or proceeding for fraud (whether previously called intrinsic or extrinsic), misrepresentation, or misconduct by an opposing party.
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Boilers Mechanical Engineering QUESTION #2466
Question 17
The addendum of a standard full-depth involute gear tooth in SI units (module \(m\)) equals:
  • \(a = 1.25m\)
  • \(a = m\)✔️
  • \(a = 0.8m\)
  • \(a = 1.157m\)
Correct Answer Logic:
For standard full-depth involute teeth (SI, 20° pressure angle): addendum \(a=m\) (one module), minimum dedendum \(b=1.25m\).
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Law QUESTION #9470
Question 18
Plaintiff A files a suit for recovery of Rs. 500,000 against Defendant B in a Civil Court whose pecuniary jurisdiction is capped at Rs. 300,000. B appears and contests the suit on merits for two years without raising any objection to jurisdiction. The Court ultimately decrees the suit in favour of A. On appeal, B for the first time raises the pecuniary jurisdiction objection. How should the appellate Court treat this objection?
  • Allow the objection since jurisdiction cannot be conferred by consent of parties
  • Dismiss the objection because it was not raised in the Court of first instance at the earliest opportunity and no failure of justice resulted✔️
  • Remand the matter to the trial Court to determine the jurisdictional question afresh
  • Allow the objection since pecuniary jurisdiction is a fundamental matter that cannot be waived
Correct Answer Logic:
Under Section 21 CPC, no objection as to the place of suing (including pecuniary jurisdiction) shall be allowed by any appellate or revisional Court unless the objection was taken in the Court of first instance at the earliest possible opportunity, and there has been a consequent failure of justice. B's two-year silence without raising the objection defeats the plea entirely.
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Boilers Mechanical Engineering QUESTION #2516
Question 19
In normal-tangential (n-t) coordinates, the acceleration of a particle moving along a curved path with speed \(v\) and radius of curvature \(\rho\) is:
  • Only the tangential component \(\dot{v}\,\hat{e}_t\)
  • Only the normal component \(\frac{v^2}{\rho}\hat{e}_n\)
  • Both \(a_t = \dot{v}\) tangentially and \(a_n = \frac{v^2}{\rho}\) normally✔️
  • A single vector directed toward the center of curvature
Correct Answer Logic:
In n-t coordinates: \(\mathbf{a}=\dot{v}\hat{e}_t + \frac{v^2}{\rho}\hat{e}_n\). The tangential component \(a_t=\dot{v}\) reflects speed change; the normal (centripetal) component \(a_n=v^2/\rho\) reflects direction change.
Uploaded by: Fani Warraich
General Knowledge QUESTION #8681
Question 20
What does 'chauvinism' mean?
  • Strong belief that your country or gender is superior✔️
  • Male dominance in society
  • Politics of non-issues
  • None of above
Correct Answer Logic:
Chauvinism means excessive or prejudiced loyalty to a group.
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