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Oxybutynin is an anticholinergic agent used for urinary incontinence and has no antiemetic role. Chlorpromazine, domperidone, and metoclopramide are all recognised antiemetics.

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Urdu QUESTION #5299

Question 945

'شہید کی جو موت ہے وہ قوم کی حیات ہے' یہ شعر کس کا ہے؟

عبدالمجید سالک
مولانا ظفر علی خان✔️
مولانا محمد علی جوہر
علامہ اقبال

Correct Answer Logic:

یہ مشہور شعر مولانا ظفر علی خان کا ہے جو پاکستان کے ادبی و سیاسی خدمت گزار تھے۔

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MCQs Section QUESTION #4829

Question 946

Select the word nearly similar in meaning to "BAKLAVA"

Stringed instrument
Dessert✔️
Whining dance
Gratuity

Correct Answer Logic:

Baklava is a rich, sweet dessert pastry made of layers of filo dough filled with chopped nuts and sweetened with honey or syrup. It is popular in Middle Eastern and Mediterranean cuisines.

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Professional QUESTION #1823

Question 947

Under Section 3(2) of the Civil Servants Act 1973, which protection is explicitly granted to civil servants regarding their terms and conditions of service?

They cannot be transferred without consent
Their terms and conditions shall not be varied to their disadvantage✔️
They are entitled to a minimum of two promotions during service
Their seniority cannot be altered after initial appointment

Correct Answer Logic:

Section 3(2) added by Act No. V of 1996 explicitly provides that the terms and conditions of service of any person to whom this Act applies shall not be varied to his disadvantage. This is a fundamental protection against adverse modification of service conditions.

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Urdu QUESTION #1411

Question 948

منٹو کے افسانوں کے پہلے مجموعے کا نام بتائیے؟

منٹو کے افسانے
دھواں
چغد
آتش پارے✔️

Correct Answer Logic:

سعادت حسن منٹو (1912–1955) کے افسانوں کا پہلا مجموعہ ''آتش پارے'' 1936 میں شائع ہوا۔ اس کے بعد ''منٹو کے افسانے''، ''دھواں''، ''سیاہ حاشیے'' اور دیگر مجموعے آئے۔ منٹو اردو افسانے کے بے مثال فنکار تھے جنہوں نے تقسیم کے المیے اور انسانی نفسیات کو بے باکی سے بیان کیا۔

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Boilers Mechanical Engineering QUESTION #4053

Question 949

'Pulverized Fuel' refers to coal that is:

Wet
Ground into a very fine powder✔️
In large chunks
Mixed with oil

Correct Answer Logic:

Fine powder burns almost like a gas, allowing for very efficient combustion in large utility boilers.

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Chemistry QUESTION #7386

Question 950

Which series of spectral lines of the hydrogen atom falls in the visible region?

Lyman series
Balmer series✔️
Paschen series
Brackett series

Correct Answer Logic:

Hydrogen spectral series and their regions:

Lyman ($n\to1$): UV region
Balmer ($n\to2$): Visible region (400–700 nm)
Paschen ($n\to3$): Near IR
Brackett ($n\to4$): IR
Pfund ($n\to5$): Far IR

The Balmer series (H$\alpha$ at 656 nm red, H$\beta$ at 486 nm blue, etc.) was the first discovered because it falls in the visible range.

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Mathematics QUESTION #4142

Question 951

At the point $(0, b)$ on the ellipse $\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$, what is the radius of curvature $\rho$?

$\frac{a^2}{b}$✔️
$\frac{b^2}{a}$
$\frac{a}{b}$
$\frac{b}{a}$

Correct Answer Logic:

For ellipse $\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$, radius of curvature at $(0,b)$ (vertex on minor axis) is $\rho = \frac{a^2}{b}$.

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Chemistry QUESTION #1446

Question 952

Which reaction involves the conversion of aldehydes into alcohols?

Oxidation
Reduction✔️
Hydrolysis
None of these

Correct Answer Logic:

Aldehydes ($RCHO$) are converted to primary alcohols ($RCH_2OH$) by reduction — adding hydrogen across the $C=O$ bond. Common reducing agents include $\text{NaBH}_4$ (sodium borohydride) and $\text{LiAlH}_4$ (lithium aluminium hydride). Oxidation of aldehydes gives carboxylic acids, not alcohols. Hydrolysis is for esters, amides, etc.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3527

Question 953

If a pharmacist finds that a sample of 'Digitalis' leaves has $20\%$ moisture, why is this a problem?

Moisture promotes enzyme activity and microbial growth, leading to drug deterioration✔️
Moisture makes the drug too heavy
Moisture turns the drug into a liquid
There is no problem

Correct Answer Logic:

Crude drugs must be dried to prevent chemical breakdown and spoilage.

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Biology QUESTION #7248

Question 954

Which one of the following is a slime mould?

Anabaena
Rhizopus
Physarum✔️
Thiobacillus

Correct Answer Logic:

Physarum is a classic example of a slime mould (Myxomycetes/Mycetozoa). Anabaena is a cyanobacterium, Rhizopus is a zygomycete fungus, and Thiobacillus is a chemolithotropic bacterium. Slime moulds are placed in kingdom Protista.

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Boilers Mechanical Engineering QUESTION #4059

Question 955

'Galvanizing' is NOT usually done for boiler tubes because:

It is too cheap
The zinc would melt and contaminate the water/metal at high temperatures✔️
It makes the tubes heavy
It is the wrong color

Correct Answer Logic:

Boiler tubes are typically made of carbon or alloy steel.

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Statistics QUESTION #1977

Question 956

In Bowley's coefficient of skewness defined as $S_k = \dfrac{Q_3 + Q_1 - 2Q_2}{Q_3 - Q_1}$, the value lies in the range:

0 to 1
$-1$ to $+1$✔️
$-3$ to $+3$
$-\infty$ to $+\infty$

Correct Answer Logic:

Bowley's coefficient of skewness is bounded between $-1$ and $+1$ because the numerator $Q_3 + Q_1 - 2Q_2$ can never exceed the denominator $Q_3 - Q_1$ in absolute value, since $Q_2$ always lies between $Q_1$ and $Q_3$.

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Chemistry QUESTION #4342

Question 957

Number of unpaired electrons in Boron ($B$) in ground state is/are:

1✔️
2
3
4

Correct Answer Logic:

Boron has atomic number 5. Its electronic configuration is $1s^2\ 2s^2\ 2p^1$. The single electron in the $2p$ orbital is unpaired, so there is $\mathbf{1}$ unpaired electron.

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Chemistry QUESTION #4348

Question 958

In propene, the $\pi$-bond is formed by sideway overlap of:

s-orbitals
p-orbitals✔️
$sp^3$ hybrid orbitals
$sp^2$ hybrid orbitals

Correct Answer Logic:

In propene ($CH_3CH=CH_2$), the double bond carbons are $sp^2$ hybridized. The $\pi$-bond is formed by the lateral (sideway) overlap of unhybridized $p$-orbitals perpendicular to the molecular plane.

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Dairy Food Science and Technology QUESTION #5952

Question 959

The lactoperoxidase system can be deliberately activated to preserve raw milk. What substrates must be added?

$\text{H}_2\text{O}_2$ and thiocyanate ($\text{SCN}^-$)✔️
$\text{NaCl}$ and $\text{H}_2\text{O}_2$
Lysozyme and $\text{H}_2\text{O}_2$
$\text{NaOH}$ and thiocyanate

Correct Answer Logic:

FAO/WHO-approved LP system activation: add $15\;\text{mg/L}$ sodium percarbonate ($\text{H}_2\text{O}_2$ source) and $15\;\text{mg/L}$ sodium thiocyanate ($\text{SCN}^-$ source). The endogenous lactoperoxidase catalyzes: $\text{H}_2\text{O}_2 + \text{SCN}^- \rightarrow \text{OSCN}^-$, inhibiting gram-negative bacteria and extending raw milk keeping quality by $4\text{–}8$ hours at ambient temperature.

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Planning QUESTION #4933

Question 960

What is the primary advantage of pedestrianization in city centers?

Increased vehicle parking
Enhanced walkability and safety✔️
Reduced property values
Faster traffic flow

Correct Answer Logic:

Pedestrianization creates safer, more pleasant walking environments, reduces air pollution, encourages social interaction, and supports retail activities by making areas more accessible and attractive.

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