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Chemistry QUESTION #482

Question 6121

__________ are product of reaction of an alcohol and aromatic bi-functional acids.

Acrylic resins
Polyester resins✔️
PVCs
Polyamide resins

Correct Answer Logic:

Polyester resins form from alcohols and dicarboxylic acids

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Administration QUESTION #2916

Question 6122

In the context of administrative reform, "Devolution" specifically refers to:

Transfer of power to local levels✔️
Centralization of authority
Privatization of state assets
Reduction of the workforce

Correct Answer Logic:

Devolution is the statutory delegation of powers from the central government of a sovereign state to govern at a subnational level, such as a local government.

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Mathematics QUESTION #4164

Question 6123

Using Euler's method with $h = 0.25$ for $y' = \frac{1}{x+y}$, $y(1) = 2$, what is $y(1.25)$?

$2 + 0.25 \times \frac{1}{3}$✔️
$2 + 0.25 \times \frac{1}{1.25}$
$2.25$
$2 + \frac{1}{3}$

Correct Answer Logic:

Euler: $y_1 = y_0 + h f(x_0, y_0) = 2 + 0.25 \times \frac{1}{1+2} = 2 + \frac{0.25}{3} = 2 + \frac{1}{12} = \frac{25}{12}$.

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Human Resource Management QUESTION #6475

Question 6124

The concept of 'avoiding common personnel mistakes' includes all EXCEPT:

Hiring the wrong person for the job
Experiencing high turnover
Maximizing employee potential✔️
Committing unfair labor practices

Correct Answer Logic:

Common personnel mistakes to avoid include: hiring wrong people, high turnover, employees not doing their best, discriminatory actions, unsafe practices, inadequate training, and unfair labor practices. Maximizing employee potential is a goal, not a mistake to avoid.

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Electrical Engineering QUESTION #2149

Question 6125

In a DC machine, the purpose of Interpoles is primarily to:

Increase the main field flux
Reduce the speed of the motor
Improve commutation by neutralizing armature reaction✔️
Decrease the starting torque

Correct Answer Logic:

Interpoles are small poles placed to neutralize the cross-magnetizing effect of armature reaction and reduce sparking at the brushes during commutation.

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Others section QUESTION #4690

Question 6126

Which country manufactures the Entac anti-tank missile?

USA
England
France✔️
USSR

Correct Answer Logic:

The ENTAC (Engin Téléguidé Anti-Char) is a wire-guided anti-tank missile developed and manufactured by France.

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CISA QUESTION #1773

Question 6127

Under what circumstances may an auditor deviate from professional audit standards?

Standards are intended for discretionary application
Deviation is extremely rare and would demand substantial justification✔️
Deviation depends on the scope of authority granted by the audit charter
The specific nature of the client environment allows for auditor flexibility

Correct Answer Logic:

Audit standards are mandatory, not discretionary. Any deviation from established professional standards is highly unusual and would require a compelling, well-documented justification. Auditors cannot simply override standards based on client characteristics or personal judgment.

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Chemistry QUESTION #5545

Question 6128

In which of the following pairs of molecules/ions are BOTH species unlikely to exist?

$H_2^+,\ He_2^{2-}$
$H_2^-,\ He_2^{2-}$
$H_2^{2+},\ He_2$✔️
$H_2^-,\ He_2^{2+}$

Correct Answer Logic:

Bond order = $\frac{1}{2}(\text{bonding} - \text{antibonding electrons})$. $H_2^{2+}$: 0 electrons, BO = 0 → does not exist. $He_2$: 2 bonding + 2 antibonding, BO = 0 → does not exist. Therefore both $H_2^{2+}$ and $He_2$ cannot exist, making option C correct.

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Physics QUESTION #1173

Question 6129

Alpha particles and electrons having the same energy — their associated De Broglie wavelengths are:

Equal
Longer than electrons (alpha has longer wavelength)
Smaller than electrons (alpha has shorter wavelength)✔️
None of these

Correct Answer Logic:

De Broglie wavelength: $\lambda = \frac{h}{\sqrt{2mE}}$. At the same kinetic energy $E$, $\lambda \propto \frac{1}{\sqrt{m}}$. Since $m_\alpha \gg m_e$ (alpha particle is ~7294 times heavier), $\lambda_\alpha \ll \lambda_e$. So alpha particles have a much shorter De Broglie wavelength than electrons at the same energy.

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MCQs Section QUESTION #4881

Question 6130

Which word is similar to "INCENDIARY"

Happy
Sneer
Causing fire✔️
Jolly

Correct Answer Logic:

Incendiary means designed to cause fires, or tending to stir up conflict. Causing fire is its closest synonym.

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Commerce QUESTION #6155

Question 6131

Sales revenue $500,000; Total costs $400,000; Fixed costs $120,000. What was the total contribution?

$100,000
$220,000✔️
$280,000
$380,000

Correct Answer Logic:

Option B ($220,000) is correct.

Variable costs = $400,000 − $120,000 = $280,000

Contribution = $500,000 − $280,000 = $220,000

(Note: Profit = $220,000 − $120,000 = $100,000 — that is Option A, not the same as contribution.)

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5734

Question 6132

What is the defining characteristic of 'Ambulatory Care' compared to 'Inpatient Care'?

The patient stays overnight
The patient receives treatment without being admitted✔️
The patient is in a coma
The patient is undergoing major surgery

Correct Answer Logic:

Ambulatory care is provided to outpatients who are not admitted.

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Agronomy QUESTION #2075

Question 6133

Weeds are classified as 'obligate weeds' when they:

Can survive equally well in cultivated and natural undisturbed habitats
Are exclusively associated with cultivated land and cannot persist in natural plant communities — their survival depends entirely on the disturbance created by agricultural operations✔️
Are resistant to all registered herbicides in a given crop
Produce allelopathic chemicals that suppress crop germination

Correct Answer Logic:

Obligate (or agrestal) weeds are ecologically specialized to agricultural habitats — they germinate with crop seeds, mimic crop morphology (Vavilovian mimicry), and cannot compete in undisturbed natural vegetation. Examples include Phalaris minor in wheat and Echinochloa crus-galli in rice. Their persistence is entirely dependent on continued soil disturbance through tillage.

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Journalism / Mass Communication QUESTION #6382

Question 6134

In advertising theory, which of the following CORRECTLY describes the difference between informational advertising and institutional advertising?

Informational advertising promotes the image of an entire industry; institutional advertising promotes a specific new product
Informational advertising emphasises a new product's name, benefits, and uses; institutional advertising concentrates on the broader benefits, philosophy, or image of a company or industry rather than a specific product✔️
Informational advertising uses facts only while institutional advertising uses emotional appeals only
Both types are identical; the difference is only in the medium used

Correct Answer Logic:

These two types of advertising serve very different purposes:

Informational Advertising: Used when a new product is first being introduced. The primary goal is to make consumers aware of the product's existence, name, features, and uses. Example: When SUVs were first introduced, manufacturers ran informational ads explaining what they were and why consumers might want one.
Institutional Advertising: Takes a broader view, promoting the benefits, concept, idea, or philosophy of a particular company or industry — not a specific product. It focuses on building a positive corporate image. Example: A lumber company running ads about its tree-replanting programme to project an environmentally responsible image.

Institutional advertising is closely related to public relations, as both aim to shape public perception of the organisation rather than drive immediate product sales.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3258

Question 6135

The 'Specific Gravity' of urine is a measure of:

The color of urine
The concentration of solutes in the urine✔️
The volume of urine
The temperature of urine

Correct Answer Logic:

It reflects the kidney's ability to concentrate or dilute urine.

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Professional QUESTION #1815

Question 6136

Under Rule 37A (Unsolicited Proposal), what additional weightage in percentage is awarded to the initiator of an unsolicited proposal during combined evaluation?

Three percent
Five percent✔️
Seven percent
Ten percent

Correct Answer Logic:

Rule 37A(1)(d) inserted via S.R.O. 442(I)/2020 provides that the initiator of a viable unsolicited proposal is exempt from prequalification and is additionally awarded five percent additional weightage during the combined evaluation of their proposal against competing bidders.

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Chemistry QUESTION #1110

Question 6137

Statement I: Benzenediazonium salt is prepared from aniline + nitrous acid at 273–278 K and decomposes easily in dry state. Statement II: Iodobenzene is prepared through reaction of benzenediazonium salt with KI because direct iodination of benzene ring is difficult.

Statement I is correct but Statement II is incorrect
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct✔️
Both Statement I and Statement II are incorrect

Correct Answer Logic:

Statement I is correct — diazotization of aniline occurs at 0–5°C (273–278 K) with NaNO$_2$/HCl; the salt is unstable and decomposes in dry state. Statement II is correct — direct iodination of benzene is very slow/difficult; the Sandmeyer-type reaction with KI is used to introduce iodine via diazonium salt.

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