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Chemistry QUESTION #7382

Which atomic model described the atom as a sphere of uniform positive charge with electrons embedded in it to give a stable arrangement?

Thomson's atomic model✔️
Rutherford's atomic model
Bohr's atomic model
Chadwick's atomic model

Correct Answer Logic:

Thomson's 'plum pudding' model (1904) proposed that the atom is a sphere of diffuse positive charge with electrons embedded throughout like plums in a pudding. This model was disproved by Rutherford's gold foil experiment (1911), which showed that positive charge is concentrated in a tiny dense nucleus, with electrons orbiting at large distances.

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General Knowledge QUESTION #8959

Question 2

What does the term 'Intifada' mean?

Reconciliation
Uprising✔️
Offence
Negotiation

Correct Answer Logic:

Intifada means 'shaking off' or uprising in Arabic.

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Maths QUESTION #7983

Question 3

If 4 out of 25 candidates failed a driving test, the percentage of candidates who passed is:

4%
21%
42%
84%✔️

Correct Answer Logic:

Passed $= 25 - 4 = 21$
Percentage $= \dfrac{21}{25} \times 100 = 84\%$

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MBBS QUESTION #10300

Question 4

The bicarbonate buffer system is the most important extracellular fluid buffer despite having a pKa (6.1) relatively far from physiological pH (7.4). This apparent paradox is best explained by the fact that it is:

A closed system with a fixed, unchangeable amount of CO2
An open system — CO2 can be rapidly eliminated via the lungs and bicarbonate can be regenerated/excreted by the kidneys, allowing effective buffering despite a non-ideal pKa✔️
A buffer whose pKa exactly matches plasma pH
Active only within the intracellular compartment

Correct Answer Logic:

Because the bicarbonate system is open — the CO2 (volatile acid) side can be rapidly adjusted by ventilation and the $HCO_3^-$ side by the kidney — it can effectively resist pH change over a wide range of acid loads, unlike a closed buffer whose capacity would be limited by the fixed pKa-pH mismatch.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5742

Question 5

The 'National Expanded Program on Immunization (EPI)' includes a vaccine for 'Pentavalent' (DPT-HepB-Hib). At what weeks is this typically administered?

$6, 10, \text{ and } 14$ weeks✔️
$Birth, 9, \text{ and } 12$ months
$15, 18, \text{ and } 24$ months
$10 \text{ and } 15$ years

Correct Answer Logic:

The schedule shows DPT-HepB-Hib at $6, 10, \text{ and } 14$ weeks.

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General Knowledge QUESTION #8862

Question 6

The novel 'The Old Man and the Sea' was written by which author?

John Steinbeck
Jane Austen
Ernest Hemingway✔️
Agatha Christie

Correct Answer Logic:

Hemingway wrote The Old Man and the Sea.

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Journalism / Mass Communication QUESTION #6411

Question 7

In the context of media stereotyping, the textbook discusses the beauty image in media as a case study. Which of the following CORRECTLY represents the textbook's argument about the economic motivation behind beauty stereotypes in advertising?

Beauty standards in advertising are set by government regulatory agencies to promote healthy body images
The beauty industry deliberately presents an ideal difficult to achieve in order to ensure continuous consumer demand for cosmetics, diet products, and anti-aging treatments — the stakes are estimated at $100 billion per year for the diet industry alone✔️
Beauty standards are driven by scientific research into optimal health metrics
Media beauty standards have no measurable impact on consumer behaviour or self-image

Correct Answer Logic:

The textbook presents a compelling economic analysis of beauty stereotyping in media: “By presenting an ideal difficult to achieve and maintain the cosmetic and diet product industries are assured of growth and profits.” Key facts cited:

The diet industry alone is estimated to be worth $100 billion (U.S.) per year
Research links exposure to unrealistic media body images to depression, loss of self-esteem, and eating disorders
35% of girls aged 6–12 had been on at least one diet; 50–70% of normal-weight girls believed they were overweight (Teen magazine, 2003)
One in four college-aged women used unhealthy weight control methods

The textbook quotes activist Jean Kilbourne: “Women are sold to the diet industry by the magazines we read and the television programs we watch.” This case study illustrates how commercial stereotyping can have serious public health consequences, going far beyond mere aesthetic preferences.

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Administration QUESTION #9576

Question 8

A telecom company reduces its workforce by 30% following privatization, but customer complaints increase by 45% within 18 months. Which organizational behaviour concept best explains this outcome?

Survivor syndrome — remaining employees experience guilt, anxiety and reduced productivity after witnessing colleague layoffs✔️
Span of control violation — too few managers are now supervising too many technical roles
Theory X activation — downsizing signals distrust which converts motivated employees into passive workers
Reinforcement withdrawal — removal of colleagues eliminates the social reinforcement that sustained performance norms

Correct Answer Logic:

Survivor syndrome describes the psychological toll on employees who remain after mass layoffs — they experience guilt, fear of further cuts, reduced morale and productivity loss. This explains why the company's service quality deteriorated despite retaining its workforce, a well-documented post-downsizing organizational failure.

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Political Science QUESTION #6662

Question 9

In the theory of Social Contract, which thinker described the state of nature as 'solitary, poor, nasty, brutish, and short'?

John Locke
Thomas Hobbes✔️
Jean-Jacques Rousseau
None of these

Correct Answer Logic:

Thomas Hobbes used this description in 'Leviathan' to justify the need for an absolute sovereign.

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Mathematics QUESTION #7456

Question 10

The distance of the point $(1, 3, -7)$ from the plane passing through the point $(1, -1, -1)$, having normal perpendicular to both the lines $\frac{x-1}{1} = \frac{y+2}{-2} = \frac{z-4}{3}$ and $\frac{x-2}{2} = \frac{y+1}{-1} = \frac{z+7}{-1}$, is:

$\frac{20}{\sqrt{74}}$
$\frac{10}{\sqrt{83}}$
$\frac{5}{\sqrt{83}}$
$\frac{10}{\sqrt{74}}$✔️

Correct Answer Logic:

The direction ratios of the two lines are $(1,-2,3)$ and $(2,-1,-1)$. The normal to the plane is perpendicular to both, so it's their cross product: $\vec{n} = \begin{vmatrix} \hat{i} & \hat{j} & \hat{k} \\ 1 & -2 & 3 \\ 2 & -1 & -1 \end{vmatrix} = \hat{i}(2-(-3)) - \hat{j}(-1-6) + \hat{k}(-1-(-4)) = 5\hat{i} + 7\hat{j} + 3\hat{k}$. The plane equation through $(1,-1,-1)$ with normal $(5,7,3)$ is $5(x-1) + 7(y+1) + 3(z+1) = 0$, which gives $5x+7y+3z+5 = 0$. Distance from $(1,3,-7)$ is $\frac{|5(1)+7(3)+3(-7)+5|}{\sqrt{25+49+9}} = \frac{|5+21-21+5|}{\sqrt{83}} = \frac{10}{\sqrt{83}}$.

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General Knowledge QUESTION #8989

Question 11

The Baghachur area of Dera Ghazi Khan contains mineral reserves of:

Rock Phosphate
Limestone
Chromites
Uranium✔️

Correct Answer Logic:

Baghachur has uranium reserves.

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Physics QUESTION #7222

Question 12

Using mass ($M$), length ($L$), time ($T$), and electric current ($A$) as fundamental quantities, the dimensions of magnetic permeability are:

$[M^1L^1T^{-2}A^{-2}]$
$[ML^{-2}T^{-2}A^{-1}]$
$[MLT^{-2}A^{-2}]$✔️
$[MLT^{-1}A^{-1}]$

Correct Answer Logic:

Magnetic permeability $\mu_0$ appears in: $F = \dfrac{\mu_0}{4\pi}\dfrac{I_1 I_2 l}{r}$

$[\mu_0] = \dfrac{[F][r]}{[I]^2[l]} = \dfrac{MLT^{-2} \cdot L}{A^2 \cdot L} = MLT^{-2}A^{-2}$

Alternatively, from $B = \mu_0 H$: $[H] = AL^{-1}$, $[B] = MT^{-2}A^{-1}$, so $[\mu_0] = \frac{[B]}{[H]} = \frac{MT^{-2}A^{-1}}{AL^{-1}} = MLT^{-2}A^{-2}$

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Civil Procedure QUESTION #3731

Question 13

Police have a warrant to search a house for a stolen 60-inch television. During the search, an officer opens a small jewelry box on a nightstand and finds illegal drugs. Is the search of the jewelry box legal?

Yes, because they had a search warrant for the house.
No, because a 60-inch television could not possibly be inside a small jewelry box.✔️
Yes, under the 'Plain View' doctrine.
No, unless they had probable cause to believe drugs were there.

Correct Answer Logic:

A search warrant only allows police to search in areas where the items listed in the warrant could reasonably be found. A large TV cannot be in a small jewelry box, so searching there exceeds the scope of the warrant.

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Mathematics QUESTION #1281

Question 14

For $f(x,y)=2x^3+y^2-9x^2-4y+12x-2$, the critical points are found by setting:

Only $f_x=0$
Only $f_y=0$
$f_x=0$ and $f_y=0$ simultaneously✔️
$f_{xx}=0$ and $f_{yy}=0$

Correct Answer Logic:

Critical points occur where all first partial derivatives vanish simultaneously: $f_x=6x^2-18x+12=6(x^2-3x+2)=6(x-1)(x-2)=0\Rightarrow x=1$ or $x=2$; $f_y=2y-4=0\Rightarrow y=2$. Critical points: $(1,2)$ and $(2,2)$.

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Chemistry QUESTION #424

Question 15

When CuSO? is electrolyzed in aqueous solution using copper electrodes then the substance which deposits at the cathode is:

Copper metal✔️
Copper ions
Hydrogen
Oxygen

Correct Answer Logic:

No explanation provided for this question.

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General Knowledge QUESTION #4740

Question 16

Denzel Washington is best recognized as which of the following?

US Army General
British Naval Commander
Hollywood Actor✔️
Music Producer

Correct Answer Logic:

Denzel Washington is a celebrated American actor, director, and producer who has won two Academy Awards, a Tony Award, and numerous other honors.

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Womens Health [Obs] [Gyn] QUESTION #3923

Question 17

A 28-year-old woman comes for a routine cervical screening test. She has no symptoms and her last test, three years ago, was normal. She is sexually active. What is the currently recommended screening test for her in a modern screening program (like Australia's)?

Human Papillomavirus (HPV) DNA testing✔️
Conventional Pap smear (cytology)
Liquid-based cytology (ThinPrep)
Colposcopy

Correct Answer Logic:

No explanation provided for this question.

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Quantitative Reasoning QUESTION #8035

Question 18

PEST : IRKSOME :: (Find the pair that best matches the relationship between the given words)

salesclerk : courteous
expert : proficient✔️
enigma : unexpected
accuser : indicted

Correct Answer Logic:

A PEST is by definition IRKSOME (annoying) — the noun is defined by that adjective. An expert is by definition proficient (highly skilled) — the noun is defined by that adjective. Both pairs = [noun] : [adjective that inherently defines it]. 'Accuser:indicted' reverses subject roles. 'Enigma:unexpected' and 'salesclerk:courteous' are not inherent/definitional relationships.

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Education QUESTION #6882

Question 19

Lee Canter's Assertive Discipline model requires teachers to take which specific action BEFORE the school year begins, as its foundational step?

Conduct home visits to assess the behavioral profiles of incoming students
Establish a systematic discipline plan and communicate expectations and consequences to students at the outset✔️
Develop a school-wide behavioral support team with administrative backing
Design individualized behavior modification contracts for each student

Correct Answer Logic:

The core premise of Assertive Discipline is proactive: teachers must construct a clear, systematic discipline plan prior to the start of the school year — including both positive consequences for compliance and negative consequences for non-compliance — and then communicate these explicitly to students from the very first day.

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General Knowledge QUESTION #11460

Question 20

Vector graphic images are constructed using:

Pixels
Paths✔️
Palette
None of above

Correct Answer Logic:

Vector graphics are composed of mathematical paths — defined by points, lines, curves, and shapes based on mathematical equations. Unlike raster (bitmap) graphics made of pixels, vector images scale to any size without quality loss. Common formats: SVG, AI, EPS.

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