Reading Mode - Questions

Chemistry QUESTION #4361

Which one of the following has higher vapour pressure?

Acetone
Acetaldehyde
Isopentane✔️
Benzene

Correct Answer Logic:

Vapour pressure depends on intermolecular forces — weaker forces mean higher vapour pressure. Isopentane ($C_5H_{12}$) has only weak London dispersion forces (low boiling point: $28°C$), giving it the highest vapour pressure among the options.

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General Intelligence/Ability QUESTION #3968

Question 1122

Calculate the value of the cube of $\frac{1}{3}$.

$\frac{3}{9}$✔️
$\frac{3}{27}$
$\frac{1}{81}$
$\frac{1}{27}$

Correct Answer Logic:

3

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General Knowledge QUESTION #8717

Question 1123

The famous painting 'The Last Judgment' is the work of which artist?

Michelangelo✔️
Rembrandt
Pablo Picasso
Leonardo da Vinci

Correct Answer Logic:

Michelangelo painted The Last Judgment on the altar wall of the Sistine Chapel.

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Nursing QUESTION #9241

Question 1124

A Head Nurse notes a patient's pulmonary artery wedge pressure (PAWP) is $22 \text{ mmHg}$. What does this MOST likely indicate in the context of a hypotensive ICU patient?

Hypovolemia — fluid resuscitation is needed
Pulmonary arterial hypertension
Left ventricular failure with pulmonary congestion✔️
Right ventricular failure — start inhaled nitric oxide

Correct Answer Logic:

Correct Answer: C — Left ventricular failure with pulmonary congestion

PAWP (Pulmonary Artery Wedge Pressure) Interpretation:

PAWP	Interpretation
$< 8 \text{ mmHg}$	Hypovolemia — aggressive fluid resuscitation
$8 - 12 \text{ mmHg}$	Normal
$12 - 18 \text{ mmHg}$	Mild-moderate elevation — monitor
$> 18 \text{ mmHg}$	LV failure / pulmonary congestion
$> 25 \text{ mmHg}$	Severe LV failure / cardiogenic pulmonary edema

PAWP (also called PCWP) reflects left atrial pressure and left ventricular end-diastolic pressure (preload). PAWP $= 22 \text{ mmHg}$ indicates fluid overload or LV failure. Hypotension with elevated PAWP = cardiogenic shock. Management: diuretics, inotropes (dobutamine), vasopressors.

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Accounting & Finance QUESTION #6164

Question 1125

According to the 'Percentage of Sales' forecasting method, which of the following is generally classified as 'Spontaneous Financing'?

Long Term Bonds
Retained Earnings
Accounts Payable✔️
Mortgage Loans

Correct Answer Logic:

Lesson 05 states that Current Liabilities like Accounts Payable generally grow in proportion to sales and are called Spontaneous Financing.

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Social Studies QUESTION #10006

Question 1126

Which two women, excluded from the World Anti-Slavery Convention, later resolved to organize the Seneca Falls Convention?

Susan B. Anthony & Elizabeth Cady Stanton
Elizabeth Cady Stanton & Lucretia Mott✔️
Lucretia Mott & Mary M'Clintock
None of these

Correct Answer Logic:

Stanton and Mott, denied participation at the 1840 Convention, went on to organize Seneca Falls in 1848.

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Mathematics QUESTION #4091

Question 1127

Consider $T:\mathbb{R}^3\to\mathbb{R}^2$ defined by $T(x,y,z)=(|x|,y+z)$. To show $T$ is NOT linear, the simplest counterexample uses scalar multiplication with $c=-1$ and vector $(1,0,0)$:

Both $T(c\mathbf{v})$ and $cT(\mathbf{v})$ equal $(1,0)$
Both equal $(-1,0)$
They differ: $T(-1,0,0)=(1,0)$ but $-T(1,0,0)=(-1,0)$✔️
They differ: $T(-1,0,0)=(0,-1)$ but $-T(1,0,0)=(0,1)$

Correct Answer Logic:

For linearity, $T(c\mathbf{v})=cT(\mathbf{v})$. With $\mathbf{v}=(1,0,0)$ and $c=-1$: $T(-1,0,0)=(|-1|,0)=(1,0)$, but $-1\cdot T(1,0,0)=-1\cdot(1,0)=(-1,0)$. Since $(1,0)\neq(-1,0)$, $T$ is NOT linear — homogeneity fails.

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Pakistan Affairs QUESTION #7693

Question 1128

Who became the first Muslim Head of the Pakistan Army?

General Ayub Khan✔️
General Yahya
General Zia-ul-Haq
None of these

Correct Answer Logic:

General Ayub Khan became the first Muslim (Pakistani) Commander-in-Chief of the Pakistan Army in 1951, replacing General Douglas Gracey, who was British. This was a significant milestone in Pakistan's military history as it marked the end of British military leadership.

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Islamic Studies QUESTION #226

Question 1129

If the husband is childless, how much does the widow get from the inheritance?

1/2
1/3
1/4✔️
None of these

Correct Answer Logic:

According to Sharia, a widow gets 1/4 if there are no children, and 1/8 if there are.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3151

Question 1130

The 'Olfactory' receptors are located in the upper part of the:

Mouth
Nasal cavity✔️
Throat
Ear

Correct Answer Logic:

Smell is detected in the roof of the nasal cavity.

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MBBS QUESTION #10229

Question 1131

A patient with chronic kidney disease develops normocytic normochromic anemia. The most direct physiological explanation is:

Reduced erythropoietin production by damaged renal peritubular interstitial cells✔️
Increased splenic sequestration and destruction of red cells
Vitamin B12 malabsorption
Chronic blood loss from the gastrointestinal tract

Correct Answer Logic:

Progressive nephron loss in chronic kidney disease reduces the renal mass responsible for erythropoietin synthesis, leading to inadequate erythropoietic stimulation and normocytic anemia — correctable with recombinant erythropoietin therapy.

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Accounting & Finance QUESTION #6231

Question 1132

A 'Modified Auditor's Report' is issued when:

The company changes its registered office address
The audit fee is increased by the shareholders
The auditor concludes the financial statements do not show a true and fair view✔️
The auditor uses the Fourth Schedule instead of the Fifth

Correct Answer Logic:

A modified report is issued when the auditor's opinion is no longer 'unqualified' regarding the truth and fairness of the accounts.

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Chemistry QUESTION #1088

Question 1133

For $\text{A(g)} \rightleftharpoons 2\text{B(g)}$, backward rate constant is 2500 times forward rate constant at 1000 K. $K_p$ at 1000 K is: (R = 0.0831 L atm mol$^{-1}$K$^{-1}$)

0.033✔️
0.021
83.1
$2.077\times10^5$

Correct Answer Logic:

$K_c = \frac{k_f}{k_b} = \frac{1}{2500} = 4\times10^{-4}$. For $\text{A}\rightleftharpoons 2\text{B}$: $\Delta n = 2-1=1$. $K_p = K_c(RT)^{\Delta n} = \frac{1}{2500}\times(0.0831\times1000)^1 = \frac{83.1}{2500} = 0.03324 \approx 0.033$.

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Accounting & Finance QUESTION #9637

Question 1134

Under the Single Entry System, which of the following changes DECREASES the owner's equity (net assets)?

Increase in Debtors
Increase in Creditors✔️
Decrease in Creditors
Decrease in Bank Overdraft

Correct Answer Logic:

An increase in liabilities (such as creditors) reduces the net assets (Assets – Liabilities), thus decreasing the owner's equity. Increases in assets increase equity; decreases in liabilities also increase equity.

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Psychology QUESTION #9821

Question 1135

Sources of frustration include:

Environmental lacks
Environmental obstacles
Incompatible motives
All of the above✔️

Correct Answer Logic:

Frustration arises from all three sources: environmental lacks (absent resources), environmental obstacles (barriers to goals), and incompatible motives (approach-avoidance conflicts where competing goals cannot both be satisfied).

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FIA Act QUESTION #9970

Question 1136

An order under Section 5(5) restraining disposal of property is subject to:

No review at all
Orders made by the Court having jurisdiction✔️
Review by the Director General only
Review by the Federal Cabinet

Correct Answer Logic:

Such an order remains subject to any order made by the Court having jurisdiction in the matter.

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MCQs Section QUESTION #5306

Question 1137

ان میں سے کون سا لفظ مذکر اور مونث دونوں ہے؟

آب
ماں
وارث✔️
زمین

Correct Answer Logic:

وارث مذکر و مونث دونوں طرح استعمال ہو سکتا ہے۔ وارث اور وارثہ دونوں درست ہیں۔

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Education QUESTION #6766

Question 1138

When scoring essay examinations, a teacher reads each complete paper fully before assigning an overall grade, sorting papers into piles (A/B/C/D/F). No sub-scores are given for specific elements. This approach reflects which scoring method, and what is its MOST significant advantage over the alternative?

Analytic rubric; provides more detailed feedback per criterion
Holistic scoring rubric; enables quicker scoring and is most appropriate when no single pre-specified correct answer exists, such as in synthesis and evaluation tasks✔️
Inter-rater scoring; maximizes consistency between two scorers
Criterion-referenced scoring; ensures all students are compared to the same absolute standard

Correct Answer Logic:

The described procedure — reading the full response and assigning a single overall score without breaking it into criteria — is holistic scoring. Its key advantage is efficiency (quicker to score) and appropriateness for extended-response tasks involving synthesis and evaluation, where performance is a gestalt that is difficult to decompose into discrete point-scoring elements.

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Mathematics QUESTION #4105

Question 1139

The absolute maximum value of $f(x,y)=xy-2x$ over the entire triangular region with vertices $(0,0),(4,0),(0,4)$ is:

$0$
$1$✔️
$4$
$8$

Correct Answer Logic:

Boundary analysis: Edge $y=0$: $f=-2x\leq0$. Edge $x=0$: $f=0$. Edge $y=4-x$: $f=-x^2+2x$, max at $x=1$ giving $f=1$. Vertex values: $f(0,0)=0$, $f(4,0)=-8$, $f(0,4)=0$. The absolute maximum is $\boxed{1}$ at $(1,3)$.

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Molecular Biology / Bioinformatics / Biochemistry QUESTION #11069

Question 1140

How many base pairs are present in each complete helical turn of the Watson-Crick B-DNA double helix?

32.3
11.6
20
10.4✔️

Correct Answer Logic:

In Watson-Crick B-DNA (the most common physiological form), each complete right-handed helical turn contains approximately 10.4 base pairs (more precisely ~10.5 bp/turn). The helix pitch (height per turn) is ~3.4 nm, and the rise per base pair is ~0.34 nm. A-DNA has ~11 bp/turn; Z-DNA (left-handed) has ~12 bp/turn. Watson and Crick originally proposed exactly 10 bp/turn in their 1953 model; later X-ray studies refined this to 10.4.

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Suggest a Question

PAWP	Interpretation
\(< 8 \text{ mmHg}\)	Hypovolemia — aggressive fluid resuscitation
\(8 - 12 \text{ mmHg}\)	Normal
\(12 - 18 \text{ mmHg}\)	Mild-moderate elevation — monitor
\(> 18 \text{ mmHg}\)	LV failure / pulmonary congestion
\(> 25 \text{ mmHg}\)	Severe LV failure / cardiogenic pulmonary edema