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Chemistry QUESTION #4337

Methanol ($CH_3OH$) is produced by reduction of:

Formaldehyde ($HCHO$)✔️
Acetaldehyde ($CH_3CHO$)
Propanal ($C_2H_5CHO$)
Propanone ($CH_3COCH_3$)

Correct Answer Logic:

Reduction of formaldehyde ($HCHO$) by adding $H_2$ gives methanol ($CH_3OH$): $HCHO + H_2 \rightarrow CH_3OH$. Reduction of an aldehyde gives a primary alcohol.

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English QUESTION #2715

Question 2

Complete the analogy: 'Teacher : School :: ___ : Kitchen'

Doctor
Chef✔️
Farmer
Lawyer

Correct Answer Logic:

A teacher works in a school; a chef works in a kitchen.

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Therapeutics and Patient Care QUESTION #3883

Question 3

For which drug class is laxative use most likely to be required as a routine preventative measure against a predictable adverse effect?

Piroxicam
Oxycodone✔️
Cefalexin
Dexamethasone

Correct Answer Logic:

Opioids including oxycodone cause constipation in virtually all patients by reducing GI motility and increasing sphincter tone. Prophylactic laxative therapy is standard practice.

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MCQs Section QUESTION #4834

Question 4

Select the word nearly opposite in meaning to "SPUNK"

Success
Timidity✔️
Growing awareness
Loss of prestige

Correct Answer Logic:

Spunk means courage, bravery, or spirit. Its antonym is 'timidity,' which means lack of courage, shyness, or fearfulness.

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Pakistan Affairs QUESTION #324

Question 5

Who is Pakistan's first female mountaineer to conquer Mount Everest?

Nazia Parveen
Samina Baig✔️
Mahoor Shahzad
Benazir Bhutto

Correct Answer Logic:

Samina Baig became the first Pakistani woman to reach the summit of Mount Everest in 2013.

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Islamic Studies QUESTION #331

Question 6

How many Jews were killed in the Ghazwa (Battle) of Khayber?

91
93✔️
96
98

Correct Answer Logic:

Historic accounts state that 93 Jews and 15 Muslims were martyred/killed.

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Agronomy QUESTION #2023

Question 7

The critical difference between a straight fertilizer and a complex fertilizer is that:

Straight fertilizers contain only organic nutrients while complex fertilizers are synthetic
A straight fertilizer supplies only one primary nutrient, whereas a complex fertilizer contains two or more primary nutrients in each granule chemically combined✔️
Complex fertilizers are always liquid while straight fertilizers are granular
Straight fertilizers are slow-release while complex fertilizers are immediately available

Correct Answer Logic:

Straight fertilizers (e.g., urea, SSP, MOP) supply a single primary nutrient (N, P, or K respectively). Complex fertilizers (e.g., DAP, NPK) contain two or more nutrients chemically combined in each granule, ensuring uniform nutrient distribution in the field.

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Chemistry QUESTION #4338

Question 8

The IUPAC name of $(CH_3)_3CCH_2Br$ is:

1-bromopentane
1-bromo-2,2-trimethylethane
1-bromo-2,2-dimethylpropane✔️
2-bromopentane

Correct Answer Logic:

The parent chain has 3 carbons (propane). There are two methyl groups on carbon 2, and a bromo group on carbon 1. IUPAC name: 1-bromo-2,2-dimethylpropane.

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Physics QUESTION #4402

Question 9

The Balmer series of hydrogen spectrum appears in the:

Infrared region
Ultraviolet region
X-ray region
Visible region✔️

Correct Answer Logic:

The Balmer series corresponds to electron transitions to the $n=2$ energy level in hydrogen. These transitions emit photons in the visible region of the electromagnetic spectrum (wavelengths $\approx 400-700\ nm$).

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Pakistan Affairs QUESTION #9067

Question 10

Which is the largest barrage in Pakistan?

Taunsa Barrage
Kotri Barrage
Guddu Barrage✔️
Sukkur Barrage

Correct Answer Logic:

Guddu Barrage is the largest.

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Pharmacokinetics and Pharmacodynamics QUESTION #3836

Question 11

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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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3164

Question 12

'Cyanosis' (bluish tint to skin) is an indication of:

High iron levels
Low oxygen in the blood✔️
Fever
Allergic reaction

Correct Answer Logic:

Deoxygenated hemoglobin has a darker, bluish hue.

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Mathematics QUESTION #4117

Question 13

For $T: \mathbb{R}^3 \to \mathbb{R}^2$ defined by $T(x, y, z) = (|x|, y + z)$, why is $T$ NOT linear?

Fails additivity: $T(u + v) \neq T(u) + T(v)$
Fails homogeneity: $T(\lambda v) \neq \lambda T(v)$ for $\lambda < 0$
Not defined at origin
Both (A) and (B)✔️

Correct Answer Logic:

$T(-1, 0, 0) = (1, 0) \neq -(1, 0) = -T(1, 0, 0)$. Also $T(-1, 0, 0) + T(1, 0, 0) = (2, 0) \neq (0, 0) = T(0, 0, 0)$. Both properties fail.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3424

Question 14

The enzyme 'Amylase' found in saliva starts the digestion of:

Proteins
Fats
Carbohydrates (Starch)✔️
Vitamins

Correct Answer Logic:

It breaks starch down into smaller maltose units.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3552

Question 15

A drug that kills or expels intestinal worms is called an:

Antipyretic
Anthelmintic✔️
Analgesic
Antiemetic

Correct Answer Logic:

Drugs like Santonin are anthelmintics.

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Administration QUESTION #2914

Question 16

What do "Proactive Strategies" in administration generally imply?

Actions based on current conditions
Anticipation of future events✔️
Response to past failures
Static operational procedures

Correct Answer Logic:

Proactive management involves planning ahead and taking action to anticipate future challenges or opportunities before they occur.

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MCQs Section QUESTION #4906

Question 17

A patient accusing a doctor of malpractice will find it difficult to prove damage _____ about proper medical procedures.

if there is a lack of some other doctor to testify
unless there will be another doctor to testify
without another doctor's testimony✔️
should there be no testimony from some other doctor

Correct Answer Logic:

Without another doctor's testimony' is the most concise and idiomatic expression. Option A is wordy and unnatural ('lack of some other doctor'). Option B incorrectly uses future tense 'will be' inside a conditional clause. Option D is unnecessarily wordy. Option E (not shown) produces a dangling participial.

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Islamic Studies QUESTION #7888

Question 18

How many times has the word 'Zakat' been mentioned in the Holy Quran?

22
12 times
32 times✔️
42 times

Correct Answer Logic:

The word 'Zakat' appears 32 times in the Holy Quran. It is often mentioned alongside Salah (prayer), emphasizing the importance of both spiritual worship and social welfare in Islam. This frequent mention shows the significance of financial charity in Islamic teachings.

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Civil Engineering QUESTION #2123

Question 19

In steel structural design, the slenderness ratio of a compression member is defined as $\lambda = \dfrac{KL}{r}$, where $r$ is the radius of gyration. The radius of gyration of a section is given by:

r = I/A
$r = \sqrt{I/A}$✔️
$r = A/I$
$r = \sqrt{A/I}$

Correct Answer Logic:

Radius of gyration $r = \sqrt{\dfrac{I}{A}}$, where $I$ = second moment of area and $A$ = cross-sectional area. It represents the distribution of area about the axis — a larger $r$ indicates area distributed farther from the neutral axis, giving greater bending and buckling resistance. For design, the minimum $r$ (about the weak axis) governs the critical slenderness ratio and buckling load.

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Civil Procedure QUESTION #3712

Question 20

Alice offers to sell her car to Bob for $\text{\$5,000}$. She says, 'I will keep this offer open for 10 days.' Three days later, Alice sells the car to Charlie. Bob hears about the sale to Charlie from a mutual friend and immediately calls Alice to accept the offer. Is there a contract between Alice and Bob?

Yes, because Alice promised to keep the offer open for 10 days.
No, because the offer was revoked when Alice sold the car to Charlie and Bob learned of it.✔️
Yes, because Bob accepted before the 10-day period expired.
No, because the car was already gone, making the contract 'physically impossible.'

Correct Answer Logic:

Under common law, an offer can be revoked at any time before acceptance unless there is consideration to keep it open (an option contract). Revocation is effective when the offeree receives reliable information that the offeror has taken action inconsistent with the offer (indirect revocation).

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