Reading Mode - Questions

Islamic Studies QUESTION #626

Question 4721

How many years did Hazrat Muhammad (ﷺ) stay in Makkah after the first Revelation?

10 years
11 years
12 years
13 years✔️

Correct Answer Logic:

He remained in Makkah for 13 years before migrating to Madina.

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Dairy Food Science and Technology QUESTION #5880

Question 4722

During butter churning, what physical transformation occurs to fat globules?

Fat globules dissolve into an emulsion
The oil-in-water emulsion ($\approx 40\%$ fat) inverts to a water-in-oil emulsion ($\approx 80\%$ fat)✔️
Fat globules are broken into smaller droplets
Crystalline fat melts and re-solidifies around water

Correct Answer Logic:

Churning converts cream (oil-in-water emulsion, $\approx 40\%$ fat) into butter (water-in-oil emulsion, $\approx 80\%$ fat). Mechanical agitation disrupts fat globule membranes, releasing liquid fat that aggregates around partially crystalline globules, forming butter grains.

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MCQs Section QUESTION #5036

Question 4723

چاہِ زناخداں کا کیا مطلب ہے؟

ٹھوڑی کا گڑھا✔️
زخم لگنا
رسوائی ہونا
ان میں سے کوئی نہیں

Correct Answer Logic:

چاہِ زناخداں کا مطلب ٹھوڑی میں پڑنے والا گڑھا ہے جسے اردو ادب میں حسن کی علامت سمجھا جاتا ہے۔

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MCQs Section QUESTION #5042

Question 4724

اردو شاعری کے علاوہ مرزا غالب نے کس صنفِ نثر میں نام پیدا کیا؟

آپ بیتی
خطوط✔️
داستان
ان میں سے کوئی نہیں

Correct Answer Logic:

مرزا غالب اردو خطوط نگاری کے بانی سمجھے جاتے ہیں۔ ان کے خطوط اردو نثر کا سرمایہ ہیں۔

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Chemistry QUESTION #7496

Question 4725

Which of the bromine oxoanion species does NOT undergo disproportionation?

$\text{BrO}_3^-$
$\text{BrO}^-$
$\text{BrO}_2^-$
$\text{BrO}_4^-$✔️

Correct Answer Logic:

Disproportionation occurs when an element in an intermediate oxidation state simultaneously undergoes oxidation and reduction.

$\text{BrO}^-$ (Br = +1): can disproportionate to Br$^-$ ($-1$) and BrO$_3^-$ ($+5$) ✓
$\text{BrO}_2^-$ (Br = +3): can disproportionate to $\text{BrO}^-$ and $\text{BrO}_3^-$ ✓
$\text{BrO}_3^-$ (Br = +5): can disproportionate under certain conditions ✓
$\text{BrO}_4^-$ (Br = +7): Br is in its highest oxidation state for bromine — it cannot be further oxidised, so disproportionation is not possible.

$\text{BrO}_4^-$ does not undergo disproportionation.

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Math Physics Chemistry Biology QUESTION #535

Question 4726

The dew drops on tips of grass leaves is an example of

Infestation
Bleeding
Exudation✔️
Imbibition

Correct Answer Logic:

Guttation/exudation produces dew drops

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Physics QUESTION #990

Question 4727

Assertion (A): In Young's double slit experiment, fringes produced by red light are wider compared to blue light. Reason (R): Fringe width is directly proportional to the wavelength of light. Choose the correct option:

Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
(A) is true but (R) is false
Both (A) and (R) are true and (R) is the correct explanation of (A)
(A) is false but (R) is true✔️

Correct Answer Logic:

Fringe width $\beta = \frac{\lambda D}{d}$. Since $\lambda_{red} > \lambda_{blue}$, red fringes are wider, not closer. The assertion in the paper states red fringes are 'closer' which is false. But (R) is true. Hence (A) is false but (R) is true.

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Mathematics QUESTION #1327

Question 4728

The exact value of $\int_1^3\dfrac{1}{x^2}\,dx$ is:

$\dfrac{1}{3}$
$\dfrac{2}{3}$✔️
$\dfrac{1}{9}$
$\dfrac{4}{3}$

Correct Answer Logic:

$\int_1^3\dfrac{1}{x^2}\,dx=\left[-\dfrac{1}{x}\right]_1^3=-\dfrac{1}{3}+1=\dfrac{2}{3}$. This is the exact value; the Trapezoidal Rule approximation approaches this as the step size decreases.

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Reading and Writing (Module-1) QUESTION #5341

Question 4729

Many people enjoy drinking tea for its caffeine content. ______, others prefer it for the calming ritual of its preparation. Which choice completes the text with a transition that most logically connects the ideas?

Similarly,
However,✔️
Therefore,
In fact,

Correct Answer Logic:

'However' connects the two different reasons people enjoy tea.

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Maths QUESTION #7937

Question 4730

What is the L.C.M. of 25, 30, 35 and 40?

3800
4200✔️
4400
None

Correct Answer Logic:

To find the L.C.M., we use prime factorization:

$25 = 5^2$
$30 = 2 \times 3 \times 5$
$35 = 5 \times 7$
$40 = 2^3 \times 5$

L.C.M. $= 2^3 \times 3 \times 5^2 \times 7 = 8 \times 3 \times 25 \times 7 = 4200$

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General Knowledge QUESTION #11557

Question 4731

Which software category allows code to execute independently of specific hardware?

High-level language✔️
Low-level language
Assembly language
Machine language

Correct Answer Logic:

High-level language programs (Python, Java, C++) are machine-independent — they run on different hardware with appropriate compilers or interpreters. Low-level languages (assembly, machine code) are tightly coupled to specific processor architectures and are not portable between different hardware platforms.

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MBBS QUESTION #10355

Question 4732

HMG-CoA reductase, the rate-limiting enzyme of cholesterol biosynthesis and the pharmacological target of statin medications, catalyzes conversion of HMG-CoA to:

Mevalonate✔️
Acetoacetate
Squalene
Lanosterol

Correct Answer Logic:

HMG-CoA reductase catalyzes the committed, rate-limiting step of cholesterol synthesis — reduction of HMG-CoA to mevalonate; statins competitively inhibit this enzyme, reducing hepatic cholesterol synthesis and upregulating LDL receptor expression to lower circulating LDL cholesterol.

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Dairy Food Science and Technology QUESTION #5918

Question 4733

The MSNF (milk solids-not-fat) content of whole cow milk is approximately:

$3.5\%$
$8.5\text{–}9\%$✔️
$12\%$
$1.5\%$

Correct Answer Logic:

MSNF includes all milk solids excluding fat: protein ($\approx 3.2\%$), lactose ($\approx 4.8\%$), minerals ($\approx 0.7\%$) and vitamins. Total MSNF $\approx 8.5\text{–}9\%$. Whole milk TS = fat ($\approx 3.5\text{–}4\%$) + MSNF ($\approx 8.5\text{–}9\%$) $\approx 12\text{–}13\%$.

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Education QUESTION #6702

Question 4734

A teacher designs a lesson where students investigate a real-world environmental problem, integrate knowledge from science, social studies, and mathematics, and produce a community action plan. This approach PRIMARILY exemplifies:

Direct instruction with authentic context
Problem-based learning with interdisciplinary integration✔️
Project learning focused on final product
Guided inductive inquiry

Correct Answer Logic:

The scenario describes problem-based learning (PBL) characteristics: authentic real-world problem, interdisciplinary integration, investigation process, and artifact production. While similar to project learning, PBL emphasizes the problem-solving process and inquiry, not just the final product.

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MBBS QUESTION #10348

Question 4735

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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Accounting & Finance QUESTION #6127

Question 4736

What are the major assumptions in CVP analysis?

Costs can be identified as either variable or fixed.
The fixed cost per unit is constant as activity rises.
The variable cost per unit fluctuates with volume.
Volume of activity is the only factor affecting revenue and variable costs.

1 and 2
1 and 4✔️
2 and 3
2 and 4

Correct Answer Logic:

Option B (1 and 4) is correct.

Statement 1 (True): All costs can be split into fixed/variable.
Statement 2 (False): Fixed cost per unit decreases as output rises (total is constant).
Statement 3 (False): Variable cost per unit is assumed constant.
Statement 4 (True): Only volume affects costs and revenue.

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General Knowledge QUESTION #8767

Question 4737

How many member states are currently in the United Nations (UNO)?

191
192
193✔️
194

Correct Answer Logic:

As of 2025, there are 193 UN member states.

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Chemistry QUESTION #7144

Question 4738

A solid with a density of $9 \times 10^{3}\text{ kg m}^{-3}$ forms an FCC crystal with an edge length of $200\sqrt{2}\text{ pm}$. Calculate the molar mass of this solid. ($N_A = 6 \times 10^{23}\text{ mol}^{-1}$)

$0.0305\text{ kg mol}^{-1}$
$0.4320\text{ kg mol}^{-1}$
$0.0432\text{ kg mol}^{-1}$✔️
$0.0216\text{ kg mol}^{-1}$

Correct Answer Logic:

Using the density formula $M = \frac{d \times N_A \times a^3}{Z}$:

$d = 9000\text{ kg/m}^3$
$Z = 4$ (for FCC)
$a = 200\sqrt{2} \times 10^{-12}\text{ m}$

Calculation: $a^3 = (200\sqrt{2})^3 \times 10^{-36} = 1.6 \times 10^{-29}\text{ m}^3$.
$M = \frac{9000 \times 6 \times 10^{23} \times 1.6 \times 10^{-29}}{4} = 0.0432\text{ kg mol}^{-1}$.

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