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Chemistry QUESTION #4362

Terminal alkynes show acidic character due to:

Terminal carbon atoms are $sp$ hybridized✔️
Terminal carbon atoms are $sp^2$ hybridized
Terminal carbon atoms are $sp^3$ hybridized
Terminal carbon atoms show hydrogen bonding

Correct Answer Logic:

In terminal alkynes ($R-C\equiv CH$), the terminal carbon is $sp$ hybridized (50% s-character). Higher s-character means the bonding electrons are held closer to the nucleus, making the $C-H$ bond more polar and the hydrogen more acidic ($pK_a \approx 25$).

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Others section QUESTION #4737

Question 4442

Which is the longest Surah (chapter) in the Holy Quran?

Surah Al-Imran
Surah Al-Baqarah✔️
Surah Yaseen
Surah An-Nisa

Correct Answer Logic:

Surah Al-Baqarah (The Cow) is the longest chapter in the Holy Quran, containing 286 verses. It covers many aspects of Islamic law and guidance.

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Geography QUESTION #1244

Question 4443

The colour of a star is an indication of its:

Size
Distance away
Surface temperature✔️
None of these

Correct Answer Logic:

The colour of a star directly indicates its surface temperature. Cool stars (around 3,000 K) appear red; medium-temperature stars like the Sun (~5,500 K) appear yellow-white; hot stars (30,000+ K) appear blue-white. This is described by Wien's Displacement Law. A star's colour does not directly indicate its size or distance.

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CISA QUESTION #1736

Question 4444

When problems are identified during an audit engagement, what is the appropriate way for the auditor to handle the remediation process?

The auditor should assume ownership of the issue and actively participate in developing a corrective action plan.
The auditor should determine the severity of the issue and then prescribe a specific solution after evaluating the business impact.
The auditor can add substantial value by defining the detailed remediation steps required to fix the problem.
The auditor must not take ownership of identified problems and should limit involvement to providing general guidance — leaving the auditee responsible for designing their own remediation plan.✔️

Correct Answer Logic:

Auditor objectivity and independence require that the auditor never become an active participant in fixing the problems they have identified. Once an auditor takes ownership of a remediation plan, they can no longer independently and objectively evaluate whether the remediation is adequate — they have effectively become part of the process they are supposed to audit. The auditor's proper role is to identify, describe, and provide general context for problems; solution design belongs to the auditee.

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Public Administration QUESTION #2930

Question 4445

What is the primary role of the "Public Service Commission" in Pakistan?

Funding projects
Ensuring merit-based recruitment✔️
Policing the districts
Drafting foreign policy

Correct Answer Logic:

Commissions like the FPSC are constitutional bodies tasked with conducting competitive exams to recruit civil servants based on merit.

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Mathematics QUESTION #4106

Question 4446

A basis for the subspace of $2\times2$ symmetric matrices that does NOT include the matrix $\begin{pmatrix}0&1\\1&0\end{pmatrix}$ is:

$\left\{\begin{pmatrix}1&0\\0&0\end{pmatrix},\begin{pmatrix}0&0\\0&1\end{pmatrix}\right\}$
$\left\{\begin{pmatrix}1&1\\1&0\end{pmatrix},\begin{pmatrix}0&1\\1&1\end{pmatrix},\begin{pmatrix}1&0\\0&1\end{pmatrix}\right\}$✔️
$\left\{\begin{pmatrix}1&0\\0&0\end{pmatrix},\begin{pmatrix}0&1\\1&0\end{pmatrix},\begin{pmatrix}0&0\\0&1\end{pmatrix}\right\}$
$\left\{\begin{pmatrix}1&0\\0&1\end{pmatrix}\right\}$

Correct Answer Logic:

The space of $2\times2$ symmetric matrices has dimension 3. Option 2 gives 3 linearly independent symmetric matrices: verify their determinant as coordinate vectors is nonzero. They span the space without using $\begin{pmatrix}0&1\\1&0\end{pmatrix}$ directly.

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Biology Zoology Botany QUESTION #1366

Question 4447

The tallest living plant species belongs to the group of:

Pteridophytes
Angiosperms
Gymnosperms✔️
Bryophytes

Correct Answer Logic:

The tallest living plant species is the coast redwood (Sequoia sempervirens), which belongs to Gymnosperms (specifically the family Cupressaceae). The tallest known individual, named Hyperion, stands at about 115.9 metres. Gymnosperms include conifers, cycads, and ginkgo — many of which are among the tallest and oldest living organisms.

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Professional QUESTION #1926

Question 4448

Under Rule 19(1) if a Minister does not communicate his opinion within the time specified for a circulated Cabinet case what is the consequence?

The case is returned to the sponsoring Division
The Cabinet Secretary seeks an extension
It shall be assumed that the Minister accepts the recommendations in the summary✔️
The case is automatically placed on the next Cabinet meeting agenda

Correct Answer Logic:

Rule 19(1) expressly provides that if a Minister does not communicate his opinion within the specified time it shall be assumed that he accepts the recommendations contained in the summary.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3211

Question 4449

'Negative Feedback' mechanism is used by the body to:

Increase a stimulus continuously
Oppose a change and restore balance✔️
Store fat
Produce sound

Correct Answer Logic:

Most hormones are regulated by negative feedback to maintain homeostasis.

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Administration QUESTION #2941

Question 4450

In marketing, the process of "Market Segmentation" involves:

Selling the exact same product to every possible customer
Dividing a broad market into distinct groups based on shared characteristics✔️
Increasing the total price of products to maximize profit margins
None of these

Correct Answer Logic:

Segmentation allows businesses to target specific groups (demographic, geographic, etc.) with tailored marketing strategies.

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Others section QUESTION #4794

Question 4451

The McMahon Line serves as the disputed border between which two countries?

India and China✔️
India and Nepal
India and Bangladesh
China and Bhutan

Correct Answer Logic:

The McMahon Line is the disputed boundary between the northeastern part of the Indian subcontinent and Tibet (China), established in 1914. China does not recognize it as a legal border.

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English QUESTION #673

Question 4452

The character Hester Prynne appears in:

Great Expectations
The Scarlet Letter✔️
Wuthering Heights
Jane Eyre

Correct Answer Logic:

Hester Prynne is the protagonist of Hawthorne's The Scarlet Letter.

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English QUESTION #670

Question 4453

"The Scarlet Letter" is set in:

17th-century Boston✔️
18th-century London
19th-century New York
16th-century Paris

Correct Answer Logic:

Nathaniel Hawthorne's novel is set in the Puritan Massachusetts Bay Colony.

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Basic Mathematics QUESTION #2830

Question 4454

Simplify: $\sqrt{225} + \sqrt{144} - \sqrt{81}$

12
15✔️
18
21

Correct Answer Logic:

$\sqrt{225} = 15$, $\sqrt{144} = 12$, $\sqrt{81} = 9$. So $15 + 12 - 9 = 18$. Answer is 18, which is option index 2.

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Biology QUESTION #556

Question 4455

Which of the following gives blue color with iodine?

Starch✔️
Cellulose
Glycogen
All of these

Correct Answer Logic:

Starch gives blue-black color with iodine

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CISA QUESTION #1762

Question 4456

What is the primary benefit of applying precedence diagram analysis to BPR projects?

It sequences individual activities in detail
It reveals the cascading impact of changes✔️
It supports root cause analysis
It enables the use of decision tree reporting

Correct Answer Logic:

Precedence diagram analysis shows the ripple effect of changes and identifies the critical path — the minimum set of tasks required to meet the project objective. It helps distinguish high-dependency tasks that must be completed from low-priority tasks that may be dropped.

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General Science and Ability QUESTION #191

Question 4457

Maximum amount of carbohydrates are obtained from:

Nuts
Plant oil
Whole grain food✔️
None of these

Correct Answer Logic:

Whole grains are primary sources of complex carbohydrates.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3448

Question 4458

The 'Double Helix' of DNA was famously described by:

Louis Pasteur
Watson and Crick✔️
Gregor Mendel
Charles Darwin

Correct Answer Logic:

They used X-ray diffraction data from Rosalind Franklin.

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Electrical Engineering QUESTION #2143

Question 4459

In a power system, the 'Ferranti Effect' occurs when the receiving end voltage $V_r$ is higher than the sending end voltage $V_s$. This is typically observed under which condition?

Full load with lagging power factor
No load or light load on long lines✔️
Short circuit at the receiving end
Heavy inductive loading

Correct Answer Logic:

The Ferranti effect is caused by the charging current of the line (capacitance) when it is energized but lightly loaded, leading to $V_r > V_s$.

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Professional QUESTION #1824

Question 4460

Under Section 3(3) added by Act No. IX of 2016, when a civil servant of a devolved Ministry is transferred to a Province under the Eighteenth Amendment, on what terms and conditions does he become a provincial civil servant?

On terms and conditions as may be determined by the Provincial Government
On terms and conditions as may be prescribed by the Federal Government
On the same terms and conditions as were applicable to him before such transfer✔️
On terms and conditions to be negotiated between the Federal and Provincial Governments

Correct Answer Logic:

Section 3(3) specifically provides that when a civil servant of a devolved Ministry or Division working in an Attached Department or Subordinate Office situated in a Province is transferred to that Province, he shall become a civil servant of the respective Province on the same terms and conditions of service as were applicable to him before such transfer.

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