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Study questions platform-wide or filter by specific tests with correct answers revealed.
Chemistry
QUESTION #4337
Question 1
Methanol ($CH_3OH$) is produced by reduction of:
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'
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?
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"
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?
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?
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:
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:
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:
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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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?
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:
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?
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:
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology)
QUESTION #3552
Question 15
A drug that kills or expels intestinal worms is called an:
Administration
QUESTION #2914
Question 16
What do "Proactive Strategies" in administration generally imply?
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.
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?
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:
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 โ 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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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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