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Home Economics QUESTION #6253

Question 881

According to Jean Piaget, the stage where children begin to think logically about concrete events is:

Sensorimotor
Preoperational
Concrete Operational✔️
Formal Operational

Correct Answer Logic:

The Concrete Operational stage typically occurs between ages 7 and 11.

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Islamic Studies QUESTION #8214

Question 882

The age of Hazrat Usman (RA) at the time of his martyrdom was:

80✔️
78
76
74

Correct Answer Logic:

Hazrat Usman ibn Affan (RA) was approximately 82 years old (close to 80) when he was martyred on 18 Dhul Hijjah 35 AH (656 CE). He was born in 576 CE in Makkah and was among the earliest converts to Islam. He served as the third Caliph for 12 years (644-656 CE). During his martyrdom, he was reciting the Quran when rebels attacked him, and his blood fell on the verse: 'Allah will suffice you against them.'

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Political Science QUESTION #6688

Question 883

The 18th Amendment to the Constitution of Pakistan (2010) primarily focused on:

Presidential Powers
Provincial Autonomy✔️
Judicial Appointments
None of these

Correct Answer Logic:

The 18th Amendment significantly increased provincial autonomy and removed the President's power to dissolve Parliament.

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Political Science QUESTION #6661

Question 884

Who wrote 'The Prince', a work focused on political realism and power?

Machiavelli✔️
Locke
Rousseau
None of these

Correct Answer Logic:

Niccolò Machiavelli wrote 'The Prince' as a guide for rulers to maintain power.

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General Abilities QUESTION #4616

Question 885

What is $|{-7}|$?

$-7$
$7$✔️
$0$
$\frac{1}{7}$

Correct Answer Logic:

Absolute value is always non-negative. $|{-7}| = 7$

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General Knowledge QUESTION #8949

Question 886

The famous 2008 book 'The Way of the World: A Story of Truth and Hope in an Age of Extremism' was written by:

Ron Suskind✔️
H.V. Hudson
William Congreve
Ayesha Jalal

Correct Answer Logic:

Ron Suskind wrote this book.

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Agronomy QUESTION #2016

Question 887

The PRIMARY objective of tillage in crop production is to:

Increase soil temperature to promote seed germination
Create a favorable seedbed by modifying soil structure, aeration, and water infiltration✔️
Eliminate the need for irrigation by conserving soil moisture
Increase soil pH to reduce fertilizer requirement

Correct Answer Logic:

The primary objective of tillage is to prepare a suitable seedbed by modifying soil physical properties — improving structure, aeration, water infiltration, and root penetrability. Secondary benefits include weed control and incorporation of crop residues and fertilizers.

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Pharmacokinetics and Pharmacodynamics QUESTION #3849

Question 888

Given $\text{Na}\ M_r = 23$ and $\text{Cl}\ M_r = 35$, what is the sodium ion concentration of a $0.9\%\ \text{w/v}$ sodium chloride solution?

$100\ \text{mmol/L}$
$130\ \text{mmol/L}$
$150\ \text{mmol/L}$✔️
$270\ \text{mmol/L}$

Correct Answer Logic:

$0.9\%\ \text{NaCl} = 9\ \text{g/L}$. $M_r$ of NaCl $= 23 + 35 = 58\ \text{g/mol}$. Moles $= \dfrac{9}{58} = 0.1552\ \text{mol/L} \approx 155\ \text{mmol/L} \approx 150\ \text{mmol/L}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3532

Question 889

A 'Carminative' is a drug that:

Relieves flatulence (gas) from the GI tract✔️
Cures cancer
Reduces fever
Causes vomiting

Correct Answer Logic:

Fennel, Cardamom, and Ginger are classic carminatives.

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Islamic Studies QUESTION #234

Question 890

The basic obligatory action (Rukn) of Hajj is:

Sa'i
Rami
Wuqof-e-Arafah✔️
None of these

Correct Answer Logic:

Being present at the plain of Arafah is the essential core of the Hajj pilgrimage.

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Quantitative Reasoning QUESTION #8003

Question 891

Since 1813 reaction to Jane Austen's novels has oscillated between ------- and condescension; but in general later writers have esteemed her works more highly than did most of her literary -------.

dismissal...admirers
adoration...contemporaries✔️
disapproval...readers
indifference...followers

Correct Answer Logic:

The sentence indicates that reactions have varied over time, with later writers valuing Austen more than those of her own time. The first blank should pair with 'condescension' to show contrasting reactions. The second blank refers to writers from her own era. Adoration...contemporaries is correct: reactions ranged from adoration to condescension, and later writers valued her more than her contemporaries (those living at the same time) did.

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English QUESTION #2751

Question 892

Choose the correct ARTICLE: '___ sun rises in the east.'

A
An
The✔️
No article

Correct Answer Logic:

'The' is used with unique objects (there is only one sun). Celestial bodies and geographical features use the definite article 'the'. So 'The sun' is correct.

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Mathematics QUESTION #4134

Question 893

For $\vec{r} = x\hat{i} + y\hat{j} + z\hat{k}$ and $r = |\vec{r}|$, what is $\nabla r$?

$\vec{r}$
$\frac{\vec{r}}{r}$✔️
$\frac{\vec{r}}{r^2}$
$\hat{r}$

Correct Answer Logic:

$\nabla r = \frac{\partial r}{\partial x}\hat{i} + \frac{\partial r}{\partial y}\hat{j} + \frac{\partial r}{\partial z}\hat{k} = \frac{x}{r}\hat{i} + \frac{y}{r}\hat{j} + \frac{z}{r}\hat{k} = \frac{\vec{r}}{r}$.

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Chemistry QUESTION #433

Question 894

Which element forms long chains alternating with oxygen?

Carbon
Silicon
Nitrogen
All of these✔️

Correct Answer Logic:

Silicon, carbon and other elements can form chains with oxygen

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3122

Question 895

The functional unit of the kidney responsible for urine formation is the:

Neuron
Nephron✔️
Ureter
Glomerulus

Correct Answer Logic:

Each kidney contains about one million nephrons.

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Math Physics Chemistry Biology QUESTION #4318

Question 896

The bacterium Treponema pallidum is responsible for which sexually transmitted disease?

Syphilis✔️
Chlamydia
Gonorrhea
Genital herpes

Correct Answer Logic:

Treponema pallidum is the bacterium that causes syphilis, a sexually transmitted infection that progresses through primary, secondary, and tertiary stages if left untreated.

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