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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3255

Question 601

The 'White Pulp' of the spleen is involved in:

Storing blood
Immune function (monitoring for pathogens)✔️
Producing bile
Filtering old RBCs

Correct Answer Logic:

White pulp contains lymphocytes that respond to antigens in the blood.

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Pharmacokinetics and Pharmacodynamics QUESTION #3836

Question 602

An adult receives $100$ mg of a drug IV and achieves a plasma concentration of $2.5\ \mu\text{g/mL}$. Assuming uniform distribution in body water, what is the apparent volume of distribution?

$0.4$ L
$4$ L
$40$ L✔️
$400$ L

Correct Answer Logic:

$V_d = \dfrac{\text{Dose}}{\text{Concentration}} = \dfrac{100\ \text{mg}}{2.5\ \mu\text{g/mL}} = \dfrac{100{,}000\ \mu\text{g}}{2.5\ \mu\text{g/mL}} = 40{,}000\ \text{mL} = 40\ \text{L}$.

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General Knowledge QUESTION #2621

Question 603

A computer's PORTS are best described as:

The internal slots inside the computer where RAM is installed
Connection points that we can connect devices to that extend the functionality of the computer✔️
The software instructions that help the CPU process data
The fans and heat sinks that cool down the computer components

Correct Answer Logic:

Ports are connection points that we can connect devices to that extend the functionality of our computer. Examples include USB ports, HDMI ports, audio jacks, and Ethernet ports — all located on the outside of the computer.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3556

Question 604

'Menthol' is a solid constituent obtained from:

Clove oil
Peppermint oil✔️
Eucalyptus oil
Cinnamon oil

Correct Answer Logic:

Menthol is the primary stearoptene of peppermint oil.

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General Abilities QUESTION #2873

Question 605

$40$ is $25\%$ of which number?

100
160✔️
200
120

Correct Answer Logic:

If $0.25x = 40$, then $x = 40 / 0.25 = 160$.

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Math Physics Chemistry Biology QUESTION #805

Question 606

At which point is heat absorbed without change in temperature?

Melting point
Both✔️
Boiling point
None

Correct Answer Logic:

At both the melting point and boiling point, heat is absorbed (as latent heat) without any change in temperature during the phase transition.

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Chemistry QUESTION #1102

Question 607

Which one of the following compounds does NOT decolourize bromine water?

Styrene (vinyl benzene)
Aniline
Cyclohexane✔️
Phenol

Correct Answer Logic:

Bromine water is decolourized by compounds with C=C double bonds, –NH$_2$ groups, or –OH (phenol) through electrophilic addition or substitution. Styrene (C=C) — decolourizes ✓. Aniline (–NH$_2$ activates ring) — decolourizes ✓. Cyclohexane — saturated, no functional group → does NOT decolourize ✗. Phenol — activated ring, decolourizes ✓.

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Chemistry QUESTION #1002

Question 608

Statement (I): Nitrogen, sulphur, halogen and phosphorus present in an organic compound are detected by Lassaigne's Test. Statement (II): The elements present in the compound are converted from covalent form into ionic form by fusing the compound with Magnesium in Lassaigne's test.

Statement I is false but Statement II is true
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false✔️

Correct Answer Logic:

Statement I is correct — N, S, halogens, and P are detected by Lassaigne's test. Statement II is false — the compound is fused with sodium (Na), not magnesium (Mg), to convert covalent bonds into ionic form (e.g., $\text{NaCN, Na}_2\text{S, NaX}$).

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Sociology QUESTION #1668

Question 609

C. Wright Mills argued in his 1956 work that democratic governance in the United States was effectively superseded by the coordinated dominance of a small, interconnected elite drawn from corporate, military, and political institutions. The concept he developed to describe this concentration of power is:

The Iron Law of Oligarchy
The Power Elite✔️
The Ruling Class
The Military-Industrial Complex

Correct Answer Logic:

In 'The Power Elite' (1956), C. Wright Mills argued that real power in the United States is held by a small group of men who occupy the command posts of the major institutional hierarchies — large corporations, the military, and the executive branch of government — whose interests are intertwined and who make the most consequential decisions affecting society.

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Federal Rules of Evidence (US) QUESTION #3790

Question 610

A defendant is on trial for possession of stolen property. He testifies in his own defense. On cross-examination, the prosecutor asks, 'Isn't it true that you lied on your last two tax returns?' The defendant has never been convicted of tax fraud. Is the question permitted?

No, because there was no conviction.
Yes, because Rule 608(b) allows inquiry into specific instances of conduct on cross-examination if they are probative of the witness's character for truthfulness.✔️
No, because it is 'extrinsic evidence.'
Yes, but only if the defendant first introduced evidence of his own good character.

Correct Answer Logic:

Rule 608(b) allows a court to permit cross-examination into specific instances of conduct (even without conviction) if they are probative of the witness's character for truthfulness or untruthfulness.

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English QUESTION #503

Question 611

VEXING

Annoying✔️
Aggressive
Viable
Waxy

Correct Answer Logic:

Vexing means annoying or frustrating

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HR and Management QUESTION #6460

Question 612

According to the text, the relationship between environmental and organizational challenges differs from the relationship between organizational and individual challenges in that:

Environmental-organizational is bidirectional; organizational-individual is unidirectional
Environmental-organizational is unidirectional; organizational-individual is bidirectional✔️
Both relationships are bidirectional
Both relationships are unidirectional

Correct Answer Logic:

The environmental-organizational relationship goes only one way (few organizations can impact the environment), while organizational-individual challenges have a two-way relationship (each affects the other reciprocally).

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3667

Question 613

'Cod Liver Oil' is a rich source of which vitamins?

B and C
A and D✔️
E and K
None

Correct Answer Logic:

It is used to prevent rickets and improve immunity.

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Geography QUESTION #6310

Question 614

In the gravity model of spatial interaction, what does the distance decay exponent 'b' represent?

Population growth rate between locations
Barrier effect of distance on interaction✔️
Economic development differential
Transportation cost per unit distance

Correct Answer Logic:

The exponent b (typically 1-3) represents the friction or barrier effect of distance. Higher b values indicate greater distance decay - interaction decreases more rapidly with distance. It varies by interaction type: social visits (high b), freight movement (low b).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3308

Question 615

'Aerosols' are a major route of transmission for which type of diseases?

Foodborne
Waterborne
Airborne (Respiratory)✔️
Vector-borne

Correct Answer Logic:

Tiny droplets suspended in the air can carry pathogens like those causing TB or Flu.

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Chemistry QUESTION #5547

Question 616

The stability of the species $Li_2$, $Li_2^+$, and $Li_2^-$ increases in the order:

$Li_2 < Li_2^+ < Li_2^-$
$Li_2^- < Li_2^+ < Li_2$
$Li_2 < Li_2^- < Li_2^+$
$Li_2^- < Li_2 < Li_2^+$✔️

Correct Answer Logic:

MO configuration for $Li_2$: $(\sigma_{1s})^2(\sigma^*_{1s})^2(\sigma_{2s})^2$ — BO = 1. For $Li_2^+$ (remove one $\sigma_{2s}$ electron): BO = 0.5. For $Li_2^-$ (add one $\sigma^*_{2s}$ electron): BO = 0.5. Wait — $Li_2^-$ adds to $\sigma^*_{2s}$, reducing BO below 1. Stability order by BO: $Li_2^+$ (0.5) < $Li_2$ (1) but $Li_2^-$ BO = 0.5 too. Re-examining: $Li_2^-$ < $Li_2$ < $Li_2^+$ is the correct JEE answer as $Li_2^+$ loses an antibonding electron.

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Reading and Writing (Module-1) QUESTION #5358

Question 617

Transgenic fish have genetic material from other species. Some contain jellyfish DNA, causing them to glow. Originally created for labs in the 90s, they became pets later and are now appearing in Brazilian rivers. A student suggests their escape from farms could lead to long-term ecological damage. Which quotation from a researcher would best support the student's assertion?

'In one site in the wild where transgenic fish were observed, females outnumbered males, while in another the numbers of females and males were equivalent.'
'Though some presence of transgenic fish in the wild has been recorded, there are insufficient studies of the impact of those fish on the ecosystems into which they are introduced.'
'The ecosystems into which transgenic fish are known to have been introduced may represent a subset of the ecosystems into which the fish have actually been introduced.'
'Through interbreeding, transgenic fish might introduce the trait of fluorescence into wild fish populations, making those populations more vulnerable to predators.'✔️

Correct Answer Logic:

Option D provides a specific negative ecological outcome (vulnerability to predators) resulting from the transgenic trait entering the wild population.

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Mathematics QUESTION #1331

Question 618

For the center of mass of a surface of revolution generated by rotating a curve about the $x$-axis, the $x$-coordinate of the center of mass is given by:

$\bar{x}=\dfrac{\int x\,dS}{\int dS}$ where $dS$ is the surface area element✔️
$\bar{x}=\dfrac{\int x\,dV}{\int dV}$
$\bar{x}=\dfrac{\int x\,dA}{\int dA}$ (area)
$\bar{x}=\dfrac{\int x\,ds}{\int ds}$ (arc length only)

Correct Answer Logic:

For a uniform surface of revolution, the center of mass lies on the axis of revolution. The $x$-coordinate is $\bar{x}=\dfrac{\int x\,dS}{\int dS}$ where $dS=2\pi y\,ds$ is the element of surface area (Pappus's theorem setup). Integration is along the generating curve.

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Chemistry QUESTION #460

Question 619

__________ is colorless volatile liquid at room temperature.

HCl
HF✔️
HI
HBr

Correct Answer Logic:

HF is colorless volatile liquid at room temperature

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Ability / HR / Governance / Special Education QUESTION #5644

Question 620

Under the GFR principles enforced by the PAO the principle of 'Prudence' requires that expenditure must not be prima facie more than the occasion demands. A government servant incurs lavish hospitality expenditure at a public function claiming it is within the budget allocation. Which principle is MOST directly violated even if funds are available?

Limitations — because actual expenditure may approach the budget allocation
Prudence — because every government servant must exercise the same vigilance over public funds as a person of ordinary prudence would over their own money✔️
Public Advantage — because the expenditure benefits a section of the community
Propriety — because high standards of financial propriety require formal approval

Correct Answer Logic:

Prudence directly applies: expenditure must not be prima facie more than the occasion demands and every government servant must exercise the same vigilance over public funds as a person of ordinary prudence would over their own money. Lavish hospitality directly contradicts this standard even if within budget.

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