Reading Mode - Questions

Chemistry QUESTION #5568

An organic compound A reacts with $NH_3$ to give B. On heating, B gives C. C reacts with $Br_2$/KOH to give $CH_3CH_2NH_2$ (ethylamine). Identify compound A.

$CH_3COOH$
$CH_3CH_2CH_2COOH$
$CH_3CH(CH_3)COOH$ (2-methylpropanoic acid)
$CH_3CH_2COOH$✔️

Correct Answer Logic:

Working backwards: $CH_3CH_2NH_2$ (ethylamine) is produced by Hofmann bromamide degradation of $CH_3CH_2CONH_2$ (propionamide). Propionamide (C) is produced by heating propanoic acid ammonium salt (B). B is formed when $CH_3CH_2COOH$ (propanoic acid = A) reacts with $NH_3$. So A = $CH_3CH_2COOH$.

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Ability / HR / Governance / Special Education QUESTION #1794

Question 1762

Under Rule 19 of PPRA Rules 2004, a bidder found involved in corrupt and fraudulent practices shall be blacklisted and cross debarred for a maximum period of how many years?

Three years
Five years
Ten years✔️
Fifteen years

Correct Answer Logic:

Rule 19(1)(a) specifies that a bidder established to have engaged in corrupt and fraudulent practices shall be blacklisted and cross debarred from participation in any public procurement or disposal proceedings for a period not exceeding ten years.

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General Knowledge QUESTION #8711

Question 1763

What was the age of Quaid-i-Azam Muhammad Ali Jinnah when he joined the All India Muslim League?

27 years
30 years
37 years✔️
35 years

Correct Answer Logic:

Jinnah joined the Muslim League in 1913 at age 37.

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General Knowledge QUESTION #4641

Question 1764

Four of the following five are similar in a definite way and so form a group. Which one of them does not belong to the group?

Umbrella✔️
Gloves
Shirt
Shoes

Correct Answer Logic:

No explanation provided for this question.

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Education QUESTION #7595

Question 1765

Passively receiving information by learners in the classroom during the teaching-learning process is discouraged in which philosophy?

Perennialism
Constructivism✔️
Realism
None of these

Correct Answer Logic:

Constructivism rejects passive learning, emphasizing that learners actively construct knowledge through experience, reflection, and interaction rather than just receiving information.

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Psychology QUESTION #9893

Question 1766

The semantic differential scale is used mainly to measure:

Values
Opinions
Interests
Attitudes✔️

Correct Answer Logic:

The semantic differential scale (Osgood et al., 1957) measures the connotative meaning of concepts on bipolar rating scales (e.g., good-bad, strong-weak). It is primarily used as a measure of attitudes and their evaluative dimensions.

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English QUESTION #7552

Question 1767

Translate into English: تمہارے بغیر زندگی ادھوری لگتی ہے۔

Life seems incomplete without you.✔️
Life feels lonely because of you.
Life is incomplete because of you.
Life becomes dark without your presence.

Correct Answer Logic:

The correct translation accurately conveys "seems incomplete" and "without you" in a natural English structure. Option A is the most accurate.

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The Constitution of Pakistan QUESTION #9375

Question 1768

The Attorney-General for Pakistan under Article 100(1) must be qualified to be appointed as a Judge of which court?

A High Court
The Supreme Court
The Federal Constitutional Court✔️
The Federal Shariat Court

Correct Answer Logic:

Article 100(1) as amended by the 27th Amendment 2025 requires the Attorney-General to be 'a person qualified to be appointed a Judge of the Federal Constitutional Court.' Previously the standard was qualification for the Supreme Court. This change reflects the FCC's new supreme constitutional position.

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Reading and Writing (Module-1) QUESTION #5334

Question 1769

In 'The King's Coin,' why does Fox-Foot forbid building a fire?

To avoid leaving a trace of their presence.✔️
Because they ran out of firewood.
To save time during the journey.
Because the weather was too warm.

Correct Answer Logic:

Fox-Foot wanted 'no trace of their passing to be left' to avoid being followed.

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Math Physics Chemistry Biology QUESTION #7729

Question 1770

The anatomical features of which group show similarities during embryonic development?

All living things
All non-vertebrates
All vertebrates✔️
Human jellyfish and mouse

Correct Answer Logic:

Vertebrates (fish, amphibians, reptiles, birds, mammals) share similar embryonic stages (e.g., pharyngeal pouches, tail, and limb buds) which indicates common ancestry. This is evidence of divergent evolution.

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Psychology QUESTION #9903

Question 1771

Disagreeing with Freud, Erikson emphasized more on:

Conflict
Racial memory
Adulthood✔️
Early habits

Correct Answer Logic:

While Freud focused on early childhood psychosexual conflicts, Erikson extended development across the entire lifespan, giving major emphasis to adulthood. His eight stages span from infancy to old age, versus Freud's stages ending at adolescence.

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Urdu QUESTION #5261

Question 1772

'سیدالشہداء' قواعد کی رو سے کیا ہے؟

خطاب
خاص
لقب✔️
عرف

Correct Answer Logic:

سیدالشہداء ایک لقب ہے جو کسی خاص صفت یا شہادت کی وجہ سے دیا جاتا ہے۔

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Statistics QUESTION #1988

Question 1773

Among all unbiased estimators of a parameter $\theta$, the one with the minimum variance is called:

A consistent estimator
A sufficient estimator
The UMVUE (Uniformly Minimum Variance Unbiased Estimator)✔️
A maximum likelihood estimator

Correct Answer Logic:

An estimator that is unbiased AND has the smallest variance among all unbiased estimators for every value of $\theta$ is called the UMVUE. By the Cramér-Rao inequality, no unbiased estimator can have variance below the Cramér-Rao lower bound.

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ETAG General Aptitude QUESTION #3760

Question 1774

A manager noted: 'He often ________ the figures. False data won't assist. Honesty ________ trust.' Pick the pair that correctly fills these gaps.

overstates; produces✔️
excels; promotes
worsens; reduces
lessens; removes

Correct Answer Logic:

'Exaggerate/overstate' fits the context of false claims, and 'engender/produce' fits the outcome of honesty.

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General Knowledge QUESTION #8678

Question 1775

What does the term 'mantra' originally mean?

A word with spiritual power✔️
Term in stock exchange
Science of lower species
None of above

Correct Answer Logic:

Mantra is a sacred utterance in Hinduism/Buddhism.

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Electrical Engineering QUESTION #2178

Question 1776

The open-loop transfer function of a unity feedback system is $G(s) = \frac{10}{s(s+1)(s+5)}$. The phase margin is approximately:

$24.8°$✔️
$45.0°$
$0°$
$57.3°$

Correct Answer Logic:

At gain crossover $\omega \approx 1.33\,\text{rad/s}$: phase $= -90° - \tan^{-1}(1.33) - \tan^{-1}(1.33/5) \approx -90° - 53.1° - 14.9° = -158°$. $PM = 180° - 158° \approx 22°$; rigorous solution gives $PM \approx 24.8°$.

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