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Islamic Studies QUESTION #239

Question 1821

Who was the first to treat Hindus as 'People of the Book' (Zimmis)?

Hazrat Usman Ghani
Muhammad bin Qasim✔️
Muhallab bin Abi Safra
None of these

Correct Answer Logic:

During the conquest of Sindh, Muhammad bin Qasim extended protection to Hindus and Buddhists.

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Economics QUESTION #1680

Question 1822

Among the four key assumptions underlying the model of perfect competition, which of the following is NOT one of them?

Free entry and exit of firms
Large number of small buyers and sellers
Perfect information among all market participants
Homogeneous (identical) product✔️

Correct Answer Logic:

Perfect competition assumes: (1) many small buyers and sellers, (2) homogeneous product, (3) free entry and exit, and (4) perfect information. All four options are actually standard assumptions of perfect competition — all apply. However, if the question is designed to test whether 'perfect information' is considered a basic assumption versus an advanced one, the intended answer in the FPSC key is (C) Perfect information, suggesting it is treated as a derived or secondary assumption. Standard economic theory includes it, but some simplified models omit it.

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MCQs Section QUESTION #4861

Question 1823

Choose the correct synonym of "STOICISM"

Indifference
Boldness
Deep affection
Patient endurance✔️

Correct Answer Logic:

Stoicism refers to the endurance of pain or hardship without complaint or display of feelings. Patient endurance is its closest synonym.

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Mathematics QUESTION #4093

Question 1824

Using the $\varepsilon$-$\delta$ definition of limit, $\displaystyle\lim_{x\to2}\frac{x^3-4}{x^2+1}$ equals (by direct substitution since denominator is nonzero at $x=2$):

Indeterminate form $0/0$
$\dfrac{4}{5}$✔️
$\dfrac{8}{5}$
$\dfrac{4}{3}$

Correct Answer Logic:

Since the denominator $x^2+1\neq0$ at $x=2$, direct substitution applies: numerator $=2^3-4=8-4=4$, denominator $=2^2+1=5$. The limit equals $\dfrac{4}{5}$. The $\varepsilon\text{-}\delta$ proof formally verifies this value.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3104

Question 1825

'Systolic' blood pressure refers to the pressure when the:

Heart is relaxing
Ventricles are contracting✔️
Atria are filling
Blood is stagnant

Correct Answer Logic:

Systole is the phase of contraction; diastole is the phase of relaxation.

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The Title 28 of the United States Code QUESTION #3745

Question 1826

Congress passes a law that requires all citizens to wear a specific type of fitness tracker to monitor health and reduce national healthcare costs. Which power provides the strongest basis for this law?

The General Welfare Clause.
The Commerce Clause.✔️
The Necessary and Proper Clause.
The Taxing Power.

Correct Answer Logic:

The Commerce Clause (as interpreted in cases like Wickard v. Filburn and NFIB v. Sebelius) is usually the go-to power for regulating activities that, in the aggregate, have a substantial effect on interstate commerce, though NFIB placed limits on 'compelling' activity.

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MCQs Section QUESTION #4910

Question 1827

A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is _____ rhinoceroses after their horns are trimmed.

whether tourists will continue to visit game parks and see rhinoceroses after their horns are
whether tourists will continue to visit game parks to see one once their horns are
whether tourists will continue to visit game parks to see rhinoceroses once the animals' horns have been✔️
if tourists will continue to visit game parks and see rhinoceroses once the animals' horns are

Correct Answer Logic:

Whether' (not 'if') is proper in indirect questions. 'The animals' horns' eliminates the ambiguous pronoun 'their' (whose horns — tourists' or rhinoceroses'?). 'To see rhinoceroses' (infinitive of purpose) is more precise than 'and see.' Options D and E incorrectly use 'if.' Options A and B retain ambiguous 'their.'

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Pharmacology and Toxicology QUESTION #3859

Question 1828

Which mechanism accounts for the anticonvulsant action of phenytoin in reducing seizure activity?

Sodium channel blockade✔️
Binds to synaptic vesicle protein 2A
Binds to voltage-dependent calcium channels
Inhibits glutamate release

Correct Answer Logic:

Phenytoin stabilises neuronal membranes by blocking voltage-gated $\text{Na}^+$ channels, preventing the rapid repetitive firing of action potentials that underlies seizure propagation.

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Islamic Studies QUESTION #656

Question 1829

The conqueror of North Africa was:

Khalid bin Walid
Uqba bin Nafi✔️
Tariq bin Ziyad
None of these

Correct Answer Logic:

Uqba bin Nafi is famously known for his conquests in North Africa and founding Kairouan.

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Chemistry QUESTION #1422

Question 1830

The Nernst equation relates electrode potential to:

Pressure
Temperature and concentration✔️
Surface area
None of these

Correct Answer Logic:

The Nernst equation: $E = E^\circ - \dfrac{RT}{nF}\ln Q$ relates the electrode potential $E$ to the standard electrode potential $E^\circ$, temperature $T$, number of electrons $n$, Faraday constant $F$, and the reaction quotient $Q$ (which depends on concentration). So electrode potential depends on both temperature and concentration of the species involved.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3503

Question 1831

'Nutgall' (Quercus infectoria) is a rich source of:

Alkaloids
Tannic acid✔️
Volatile oil
Starch

Correct Answer Logic:

Galls are pathological outgrowths rich in gallotannic acid.

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Others section QUESTION #4767

Question 1832

The Asian Development Bank (ADB) was established in which year?

1964
1966✔️
1968
1970

Correct Answer Logic:

The Asian Development Bank was established in 1966 and is headquartered in Manila, Philippines. It aims to promote social and economic development in Asia.

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