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Chemistry QUESTION #4344

The element with smallest value of ionization energy is:

U
Al
Ca
Ba✔️

Correct Answer Logic:

Ionization energy decreases down a group and across a period (left to right increases). Ba (Barium) is in Group 2, Period 6, so it has the lowest ionization energy among the given options.

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Accounting & Finance QUESTION #6182

Question 1222

In FM, why is 'Market Value' preferred over 'Historical Cost' for analysis?

Market value is easier to calculate
Historical cost is always higher✔️
Assets' values are determined by the cash flows they generate today, not past cost
Tax authorities require market value for all reports

Correct Answer Logic:

Lesson 03 explains the FM focus on market value and incremental cash flows to determine the true value of a company.

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Dairy Food Science and Technology QUESTION #5928

Question 1223

Casein micelles in milk are stabilized against aggregation primarily by:

Van der Waals attraction forces
Steric stabilization by the $\kappa$-casein 'hairy layer' and electrostatic repulsion (negative surface charge, zeta potential $\approx -20\;\text{mV}$)✔️
Hydrophobic bonding to fat globule membranes
Disulfide bonds between $\beta$-casein molecules

Correct Answer Logic:

Casein micelle stability depends on: steric repulsion from the protruding GMP portion of $\kappa$-casein on the micelle surface; and electrostatic repulsion due to negative surface charge (zeta potential $\approx -20\;\text{mV}$ at milk $\text{pH}$). Removal of either causes aggregation.

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Pakistan Affairs QUESTION #617

Question 1224

On what ground are the seats in the Senate allocated to the provinces?

Population
Area
Resources
None of these✔️

Correct Answer Logic:

Senate seats are allocated on the basis of provincial equality, not population or area.

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Pakistan Affairs QUESTION #157

Question 1225

What did Jinnah's Fourteen Points state regarding the future constitution of India?

The constitution should be unitary
The constitution should be federal, with residuary powers in provinces✔️
It should grant complete independence to provinces
It should establish a centralized government

Correct Answer Logic:

Jinnah insisted on a federal system to protect Muslim-majority provincial interests.

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Civil Procedure QUESTION #3719

Question 1226

A painter agrees to paint a portrait for $\text{\$5,000}$, with payment due 'only if I am 100% satisfied with the likeness.' The painter does a high-quality job that meets all professional standards, but the client says, 'I just don't like it,' and refuses to pay. Can the painter recover?

Yes, if a 'reasonable person' would be satisfied with the portrait.
No, because satisfaction clauses regarding art/personal taste are governed by a subjective standard.✔️
Yes, because the client is acting in bad faith.
No, because the contract was an 'illusory promise.'

Correct Answer Logic:

For contracts involving personal taste or aesthetics (like a portrait), a 'satisfaction' clause is governed by a subjective standard. As long as the dissatisfaction is honest (not necessarily reasonable), the condition is not met.

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Civil Engineering QUESTION #6623

Question 1227

The 'Modulus of Elasticity' ($E$) for all structural steel grades is approximately:

$29,000,000$ psi✔️
$2,900,000$ psi
$290,000$ psi
$50,000$ psi

Correct Answer Logic:

Unlike yield strength, the stiffness of steel ($E$) is constant across nearly all grades, taken as 29,000 ksi or 200,000 MPa.

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The Elections Act 2017 QUESTION #9415

Question 1228

Under Section 16(2), once the Commission submits its annual report to the Federal and Provincial Governments, those Governments are required to lay the report in their respective Houses within:

Thirty days from receipt
Sixty days from receipt✔️
Ninety days from receipt
One hundred and twenty days from receipt

Correct Answer Logic:

Section 16(2) states: 'The Federal Government and each Provincial Government shall, within sixty days from the receipt of the annual report from the Commission, lay the annual report in each House.'

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Math Physics Chemistry Biology QUESTION #4328

Question 1229

Which statement best compares cell division in prokaryotic and eukaryotic cells?

Eukaryotes divide by budding; prokaryotes by mitosis
Eukaryotes use binary fission; prokaryotes by meiosis
Eukaryotes divide by mitosis; prokaryotes by binary fission✔️
Both use mitosis

Correct Answer Logic:

Prokaryotes divide by binary fission, a simpler process without a spindle. Eukaryotes undergo mitosis (somatic cells) or meiosis (sex cells), involving a spindle apparatus and nuclear envelope.

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English QUESTION #2777

Question 1230

Which ONE WORD means: 'A government in which all citizens have equal rights and elect their representatives'?

Monarchy
Democracy✔️
Dictatorship
Oligarchy

Correct Answer Logic:

'Democracy' is a system of government where power is vested in the people, who rule through elected representatives. Monarchy is rule by a king/queen; Dictatorship is rule by one absolute ruler; Oligarchy is rule by a small group.

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General Abilities QUESTION #4597

Question 1231

Expand: $(x - 4)(x + 4)$

$x^2 - 16$✔️
$x^2 + 16$
$x^2 - 8x + 16$
$2x$

Correct Answer Logic:

Using $(a-b)(a+b) = a^2 - b^2$: $(x-4)(x+4) = x^2 - 16$

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Quantitative Reasoning QUESTION #8032

Question 1232

FRAGILE : BREAK :: (Find the pair that best matches the relationship between the given words)

invisible : see
erratic : control
flammable : burn✔️
noxious : escape

Correct Answer Logic:

FRAGILE means easily broken — it describes a tendency toward BREAK. Similarly, flammable means easily burned — it describes a tendency toward BURN. Both pairs follow the pattern: [adjective meaning 'prone to X'] : [the action X]. 'Invisible:see' is opposite (invisible means cannot be seen). 'Erratic:control' and 'noxious:escape' don't share this structural relationship.

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General Abilities QUESTION #2826

Question 1233

If $5(x - 3) = 2(x + 6)$, find $x$.

7
9
11✔️
13

Correct Answer Logic:

$5x - 15 = 2x + 12$. $5x - 2x = 12 + 15$. $3x = 27$. $x = 9$. Wait: $5(9-3)=5\times6=30$ and $2(9+6)=2\times15=30$ ✓. So $x=9$, which is option index 1 (option_2).

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Islamic Studies QUESTION #362

Question 1234

"Ghunyat ul Talibeen" was written by the Great Sufi:

Al Ghazali
Al Sha'ahrani
Abdul Qadir Jillani✔️
Ali Hajwairi

Correct Answer Logic:

Sheikh Abdul Qadir Jillani is the author of this famous spiritual guidebook.+1

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Planning QUESTION #4918

Question 1235

Which type of urban structure typically results in the highest mobility demands?

Grid Type Structure
Linear Structure
Centripetal Structure✔️
Decentralized Structure

Correct Answer Logic:

Centripetal (centralized) structure creates the highest mobility demands because most activities concentrate in the center, forcing longer trips from peripheral areas and increasing traffic congestion.

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Accounting & Finance QUESTION #6135

Question 1236

A trial balance had a suspense account with a credit balance of $1,720. Errors found: (1) Purchases returns balance of $440 omitted from trial balance; (2) Bank overdraft balance understated by $90. What is the updated credit balance of the suspense account?

$1,190
$1,370
$2,070✔️
$2,250

Correct Answer Logic:

Option C ($2,070) is correct.

Error 1: Purchases returns (credit balance) omitted → credit total understated → Credit suspense $440.

Error 2: Bank overdraft (credit balance) understated → Credit suspense $90.

Updated balance = $1,720 + $440 − $90 = $2,070

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Chemistry QUESTION #7137

Question 1237

When two identical metal blocks of mass $m$ at temperatures $T_1$ and $T_2$ are brought into thermal contact in an isolated system, they reach an equilibrium temperature $T_f$. What is the total entropy change ($\Delta S$) for this process?

$2Cp \ln(\frac{T_1+T_2}{2\sqrt{T_1T_2}})$✔️
$2Cp \ln(\frac{T_1+T_2}{2T_1T_2})$
$Cp \ln(\frac{(T_1+T_2)^2}{4T_1T_2})$
$2Cp \ln(\frac{T_1+T_2}{\sqrt{T_1T_2}})$

Correct Answer Logic:

The final temperature for two identical blocks is the arithmetic mean, $T_f = \frac{T_1+T_2}{2}$. The entropy change for the first block is $\Delta S_1 = Cp \ln(T_f/T_1)$ and for the second is $\Delta S_2 = Cp \ln(T_f/T_2)$. The total change $\Delta S = Cp \ln(\frac{T_f^2}{T_1T_2}) = 2Cp \ln(\frac{T_f}{\sqrt{T_1T_2}})$. Substituting $T_f$, we get $2Cp \ln(\frac{T_1+T_2}{2\sqrt{T_1T_2}})$.

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General Knowledge QUESTION #8677

Question 1238

What was the first living creature to travel into space?

A dog (bitch)✔️
A frog
An eagle
A cow

Correct Answer Logic:

Laika, a dog, was the first living creature in space.

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Physics QUESTION #1176

Question 1239

The Zeeman effect is due to the interaction of:

External magnetic field and total magnetic field of the specimen✔️
External electric field and magnetic field of specimen
L, S coupling
None of these

Correct Answer Logic:

The Zeeman effect is the splitting of spectral lines when an atom is placed in an external magnetic field. It arises due to the interaction between the externally applied magnetic field and the total magnetic moment (orbital + spin) of the atom. The energy levels split according to $\Delta E = m_l \mu_B B$.

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English QUESTION #8573

Question 1240

What does the idiom 'to husband one's resources' mean?

to manage one's means with frugality✔️
to hand over everything to husband
to take household expenses from husband
to leave all affairs to life partner

Correct Answer Logic:

'Husband' as a verb means to manage resources carefully.

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