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Chemistry QUESTION #7507
Question 3181

Match Item I (compound) with the correct Item II (reagent/property):

Item IItem II
(A) Acetaldehyde(P) Tollen's reagent
(B) Benzaldehyde(Q) Lucas reagent
(C) Cyclohexanol(R) NaHSO$_3$
(D) Phenol(S) FeCl$_3$
  • (A)โ†’(P),(B)โ†’(R),(C)โ†’(Q),(D)โ†’(S)โœ”๏ธ
  • (A)โ†’(R),(B)โ†’(P),(C)โ†’(Q),(D)โ†’(S)
  • (A)โ†’(P),(B)โ†’(Q),(C)โ†’(R),(D)โ†’(S)
  • (A)โ†’(S),(B)โ†’(P),(C)โ†’(Q),(D)โ†’(R)
Correct Answer Logic:

Matching logic:

  • Acetaldehyde (CH$_3$CHO): Aliphatic aldehyde โ€” gives silver mirror with Tollen's reagent (P).
  • Benzaldehyde (PhCHO): Aromatic aldehyde โ€” forms addition compound with NaHSO$_3$ (R) (bisulphite addition).
  • Cyclohexanol: Secondary alcohol โ€” reacts with Lucas reagent (Q) (ZnCl$_2$/HCl) to form turbid chloride (within minutes).
  • Phenol: Gives characteristic violet colour with FeCl$_3$ (S).

Correct: (A)โ†’(P), (B)โ†’(R), (C)โ†’(Q), (D)โ†’(S)

Uploaded by: Fani Warraich
Correct Answer Logic:

Radius of curvature $R = \frac{v^2}{a_{\perp}}$.

  • At $t=1$: $v_x = 10 \cos 60^{\circ} = 5$; $v_y = 10 \sin 60^{\circ} - 10(1) = 5\sqrt{3} - 10 \approx -1.34$.
  • Total $v = \sqrt{5^2 + (-1.34)^2} \approx 5.18$.
  • $a_{\perp} = g \cos \theta$ where $\theta$ is the angle of the velocity vector. After calculation, $R \approx 2.8\text{ m}$.
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Biology QUESTION #7271
Question 3183
Mannitol is the stored food in:
  • Gracillaria
  • Chara
  • Porphyra
  • Fucusโœ”๏ธ
Correct Answer Logic:
Fucus is a brown alga (Phaeophyceae) that stores food as mannitol (a sugar alcohol) and laminarin. Gracillaria and Porphyra are red algae storing floridean starch. Chara is a green alga storing starch. Each algal group has characteristic stored food materials.
Uploaded by: Fani Warraich
Correct Answer Logic:

Using the raw material formula:

$\text{Purchases} = \text{Consumption} + \text{Closing Stock} - \text{Opening Stock}$

$= 26{,}500 + 4{,}500 - 3{,}000 = \mathbf{Rs.\ 28{,}000}$

Opening stock plus purchases minus closing stock equals consumption. Rearranging: Purchases $=$ Consumption $+$ Closing Stock $-$ Opening Stock.

Uploaded by: Fani Warraich
Ability / HR / Governance / Special Education QUESTION #1887
Question 3185
Which court's powers are conferred on an Inquiry Officer/Committee under Rule 7(1) of GS E&D Rules 1973?
  • Sessions Court under CrPC 1898
  • Civil Court trying a suit under Code of Civil Procedure 1908โœ”๏ธ
  • High Court under its original jurisdiction
  • Special Tribunal under NAB Ordinance
Correct Answer Logic:
Rule 7(1) specifically grants Inquiry Officers/Committees the powers of a civil court trying a suit under the Code of Civil Procedure 1908 (Act V of 1908).
Uploaded by: Fani Warraich
Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3673
Question 3186
Which drug is an 'Expectorant' (helps clear mucus)?
  • Senna
  • Vasaka (Adhatoda)โœ”๏ธ
  • Aloe
  • Castor oil
Correct Answer Logic:
Vasaka is a traditional remedy for bronchitis and cough.
Uploaded by: Fani Warraich
Islamic Studies QUESTION #207
Question 3187
Which is the year of the blessed birth of Prophet Muhammad (๏ทบ)?
  • 570 or 571 CEโœ”๏ธ
  • 575 or 576 CE
  • 590 or 591 CE
  • 595 or 596 CE
Correct Answer Logic:
The Prophet (๏ทบ) was born in the "Year of the Elephant," approx. 570/571 CE.
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General Abilities QUESTION #4606
Question 3188
Expand: $(x - 3)^2$
  • $x^2 - 9$
  • $x^2 + 9$
  • $x^2 - 6x + 9$โœ”๏ธ
  • $x^2 - 3x - 9$
Correct Answer Logic:
Using $(a-b)^2 = a^2 - 2ab + b^2$: $(x-3)^2 = x^2 - 6x + 9$
Uploaded by: Fani Warraich
Mathematics QUESTION #7438
Question 3189
The sum of first 20 terms of the sequence 0.7, 0.77, 0.777, โ€ฆ is:
  • \(\frac{7}{81}(179-10^{-20})\)
  • \(\frac{7}{9}(99-10^{-20})\)
  • \(\frac{7}{81}(179+10^{-20})\)โœ”๏ธ
  • \(\frac{7}{9}(99+10^{-20})\)
Correct Answer Logic:
Each term can be written as \(0.7, 0.77, 0.777, \ldots = \frac{7}{9}(0.9, 0.99, 0.999, \ldots) = \frac{7}{9}(1-10^{-1}, 1-10^{-2}, 1-10^{-3}, \ldots)\). The sum of first 20 terms is \(S = \frac{7}{9}\sum_{k=1}^{20}(1-10^{-k}) = \frac{7}{9}\left[20 - \sum_{k=1}^{20}10^{-k}\right] = \frac{7}{9}\left[20 - \frac{0.1(1-10^{-20})}{1-0.1}\right] = \frac{7}{9}\left[20 - \frac{1-10^{-20}}{9}\right] = \frac{7}{9} \cdot \frac{180 - 1 + 10^{-20}}{9} = \frac{7}{81}(179 + 10^{-20})\).
Uploaded by: Fani Warraich
Correct Answer Logic:

Option B ($150,000) is correct.

COGS = 8 × $15,000 = $120,000

Mark-up 25%: Revenue = $120,000 × 1.25 = $150,000

Uploaded by: Fani Warraich
Law QUESTION #9510
Question 3191
A judgment is pronounced by the trial Court on 1 March 2023. The formal decree is drawn up and signed on 15 April 2023. An appeal is filed on 25 March 2023, i.e., after judgment but before the formal decree. The respondent contends the appeal is premature and incompetent. Is this objection valid?
  • No; the appellate Court should wait until the formal decree is ready before hearing the appeal
  • No; under Section 96 CPC, an appeal lies from a decree, and the date of the decree is the date of the judgment; the formal decree, once drawn, relates back to the date of the judgment. An appeal filed after judgment but before formal drawing of the decree is validโœ”๏ธ
  • Yes; an appeal can only be filed after the decree is formally drawn up and signed
  • Yes; limitation for appeal runs from the date the decree is signed
Correct Answer Logic:
Section 2(2) CPC defines a decree as a formal expression of adjudication. A decree relates to the judgment which precedes it. Under Order XX CPC, the decree follows from the judgment. Limitation for appeal runs from the date of decree (i.e., the date of judgment). An appeal filed after judgment is not premature even if the formal decree has not been drawn.
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Math Physics Chemistry Biology QUESTION #792
Question 3192
Which of the following is true?
  • \(\text{Na}^+\) is smaller than \(\text{Na}\)โœ”๏ธ
  • \(\text{Cl}^-\) is less than \(\text{Cl}\)
  • \(\text{Na}^+\) is greater than \(\text{Na}\)
  • None
Correct Answer Logic:
When \(\text{Na}\) loses an electron to form \(\text{Na}^+\), the electron cloud shrinks due to increased nuclear charge per electron, making \(\text{Na}^+\) smaller than \(\text{Na}\).
Uploaded by: Fani Warraich
General Knowledge QUESTION #8955
Question 3193
The world-famous Madame Tussauds wax museum is situated in which city?
  • Paris
  • Londonโœ”๏ธ
  • Rome
  • New York
Correct Answer Logic:
The original Madame Tussauds is in London.
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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5738
Question 3194
A 'Consultant Pharmacy' practice differs from a 'Community Pharmacy' because it focuses more on:
  • Actual dispensing of drugs
  • Medication procedure reviewโœ”๏ธ
  • Surgical supplies
  • Retail sales of cosmetics
Correct Answer Logic:
Consultant pharmacy focuses on procedure review rather than dispensing.
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ETAG General Aptitude QUESTION #3768
Question 3195 (Select all that apply)
In the context of English grammar and logical reasoning, which of the following statements about 'Syllogisms' are correct?
  • A syllogism consists of two premises and a conclusion.โœ”๏ธ
  • The conclusion is derived from the premises.โœ”๏ธ
  • All premises must be objectively true for a syllogism to be valid.
  • If the premises are true and the logic is valid, the conclusion must be true.โœ”๏ธ
Correct Answer Logic:
Syllogisms depend on logical structure (validity) rather than objective truth of premises (truth). Option 3 is false.
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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3473
Question 3196
'Essential Amino Acids' are those that:
  • The body can make itself
  • Must be supplied by the dietโœ”๏ธ
  • Are not needed
  • Are only in meat
Correct Answer Logic:
There are 9 essential amino acids for humans.
Uploaded by: Fani Warraich
Physics QUESTION #384
Question 3197
For photons of energy greater than 1.02 MeV the probability of pair production occurrence __________ as the energy increases.
  • Increaseโœ”๏ธ
  • Completely diminishes
  • Reduces to half
  • Remains unchanged
Correct Answer Logic:
Pair production probability increases with photon energy above threshold
Uploaded by: Fani Warraich
Pakistan Affairs QUESTION #609
Question 3198
In which war did Ahmad Khan Kharal fight against the British in Punjab?
  • 1839
  • 1885
  • 1897
  • None of theseโœ”๏ธ
Correct Answer Logic:
Ahmad Khan Kharal led the resistance during the War of Independence in 1857 .
Uploaded by: Fani Warraich
General Knowledge QUESTION #8764
Question 3199
What is the medical condition 'insomnia'?
  • Inability to sleepโœ”๏ธ
  • Colour blindness
  • Depression
  • None of the above
Correct Answer Logic:
Insomnia is difficulty sleeping.
Uploaded by: Fani Warraich
Therapeutics and Patient Care QUESTION #3883
Question 3200
For which drug class is laxative use most likely to be required as a routine preventative measure against a predictable adverse effect?
  • Piroxicam
  • Oxycodoneโœ”๏ธ
  • Cefalexin
  • Dexamethasone
Correct Answer Logic:
Opioids including oxycodone cause constipation in virtually all patients by reducing GI motility and increasing sphincter tone. Prophylactic laxative therapy is standard practice.
Uploaded by: Fani Warraich