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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3020

Question 1961

Which base is used for 'Hydrophilic Ointment USP'?

White Petrolatum
Water-removable base✔️
Polyethylene Glycol
Anhydrous Lanolin

Correct Answer Logic:

Hydrophilic Ointment is a water-removable (O/W) emulsion base.

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Urdu QUESTION #1413

Question 1962

حیاتِ جاوید کس نوعیت کی کتاب ہے؟

آپ بیتی
سوانحِ عمری✔️
تذکرہ
تاریخ

Correct Answer Logic:

''حیاتِ جاوید'' مولانا الطاف حسین حالی (1837–1914) کی لکھی ہوئی سر سید احمد خان کی مشہور سوانحِ عمری (Biography) ہے جو 1901 میں شائع ہوئی۔ یہ اردو سوانح نگاری کا ایک شاہکار ہے جس میں سر سید کی زندگی، افکار اور خدماتِ قوم کو تفصیل سے بیان کیا گیا ہے۔ آپ بیتی خود نوشت ہوتی ہے، جبکہ سوانحِ عمری دوسرے کے بارے میں لکھی جاتی ہے۔

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Basic Mathematics QUESTION #4522

Question 1963

Simplify: $4^2 \times 2^2$

$8^4$
$(8 \times 2)^2$
$8^2$✔️
$2^8$

Correct Answer Logic:

$4^2 \times 2^2 = (4 \times 2)^2 = 8^2 = 64$. Using $(bc)^m = b^m c^m$

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3673

Question 1964

Which drug is an 'Expectorant' (helps clear mucus)?

Senna
Vasaka (Adhatoda)✔️
Aloe
Castor oil

Correct Answer Logic:

Vasaka is a traditional remedy for bronchitis and cough.

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Pakistan Affairs QUESTION #127

Question 1965

The Tashkent Agreement was signed on:

10-Jan-66✔️
10-Feb-66
10-Mar-66
10-Apr-66

Correct Answer Logic:

The Tashkent Declaration was a peace agreement between India and Pakistan signed on 10 January 1966.

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Reading and Writing (Module-1) QUESTION #5433

Question 1966

A student hypothesizes slightly acidic soil helps choy sum grow better than neutral soil. She plants seeds in acidic mix (coffee grounds + soil) and neutral soil. Which finding would most directly weaken her hypothesis?

Choy sum in neutral soil were significantly taller than those in acidic mix.✔️
Choy sum in neutral soil weighed significantly less than those in acidic mix.
Seeds in neutral soil sprouted significantly later than those in acidic mix.
Fewer seeds in neutral soil sprouted than those in acidic mix.

Correct Answer Logic:

If neutral soil produced taller plants, that weakens the claim that acidic soil is more beneficial.

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Mathematics QUESTION #4138

Question 1967

For $\vec{r} = x\hat{i} + y\hat{j} + z\hat{k}$, what is $\nabla \cdot \vec{r}$?

$0$
$1$
$3$✔️
$r$

Correct Answer Logic:

$\nabla \cdot \vec{r} = \frac{\partial x}{\partial x} + \frac{\partial y}{\partial y} + \frac{\partial z}{\partial z} = 1 + 1 + 1 = 3$.

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Agronomy QUESTION #2055

Question 1968

The permanent wilting point (PWP) of soil is the moisture content at which:

All gravitational water has drained from the soil macropores
Plants can no longer extract sufficient water from the soil and wilt permanently, corresponding to a soil matric potential of approximately $-1500$ kPa (or $-15$ bar)✔️
Soil moisture equals 50% of field capacity
Surface evaporation exceeds plant transpiration

Correct Answer Logic:

PWP is the soil moisture content at which the remaining water is held so tightly by soil particles (matric potential ≈ −1500 kPa) that roots cannot exert sufficient suction to extract it. Plants wilt permanently — they do not recover even when placed in a humid atmosphere. Plant-available water = FC − PWP.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3530

Question 1969

Which part of 'Cinnamon' (Darchini) is used as medicine?

Leaves
Inner Bark✔️
Flowers
Roots

Correct Answer Logic:

Cinnamomum zeylanicum bark is the medicinal part.

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Physics QUESTION #986

Question 1970

For a short dipole placed at origin $O$, the dipole moment $P$ is along the $x$-axis. If the electric potential and electric field at $A$ (on the $x$-axis at distance $r$) are $V_0$ and $E_0$ respectively, then the electric potential and electric field at point $B$ on the $y$-axis at distance $2r$ are:

$V_0$ and $\dfrac{E_0}{4}$
zero and $\dfrac{E_0}{16}$✔️
zero and $\dfrac{E_0}{8}$
$\dfrac{V_0}{2}$ and $\dfrac{E_0}{16}$

Correct Answer Logic:

On the equatorial axis (y-axis): $V=0$ always. $E_{axial}=\frac{2kP}{r^3}$ and $E_{equatorial}=\frac{kP}{r^3}$. At distance $r$: $E_0=\frac{2kP}{r^3}$. At distance $2r$ on equatorial: $E=\frac{kP}{(2r)^3}=\frac{kP}{8r^3}=\frac{E_0}{16}$. So: zero and $\frac{E_0}{16}$.

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Chemistry QUESTION #4365

Question 1971

The theories which explain the formation of sigma ($\sigma$) and pi ($\pi$) bonds are EXCEPT:

MOT
VBT
VSEPR
CFT✔️

Correct Answer Logic:

Valence Bond Theory (VBT) explains $\sigma$ and $\pi$ bond formation through orbital overlap. Molecular Orbital Theory (MOT) also describes bonding. VSEPR predicts shape. Crystal Field Theory (CFT) deals with d-orbital splitting in coordination complexes — it does NOT explain $\sigma$ and $\pi$ bond formation.

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GATE General Aptitude QUESTION #3762

Question 1972

How many distinct three-digit integers can be formed using three different prime numbers between 0 and 9?

64
24✔️
12
4

Correct Answer Logic:

The prime numbers are {2, 3, 5, 7}. We choose 3 primes in $4C3 = 4$ ways and arrange them in $3! = 6$ ways. Total = $4 \times 6 = 24$.

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Mechanical Engineering QUESTION #2503

Question 1973

A simply supported beam with uniformly distributed load $w$ (N/m) over span $L$ has a maximum bending moment of:

$M_{max} = \frac{wL}{8}$
$M_{max} = \frac{wL^2}{4}$
$M_{max} = \frac{wL^2}{8}$✔️
$M_{max} = \frac{wL^2}{2}$

Correct Answer Logic:

For a simply supported beam with UDL $w$ over span $L$: the maximum bending moment occurs at mid-span and equals $M_{max} = wL^2/8$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3221

Question 1974

'Rhodopsin' is the light-sensitive pigment found in which cells?

Cones
Rods✔️
Bipolar cells
Ganglion cells

Correct Answer Logic:

Rods use rhodopsin for vision in dim light (scotopic vision).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3554

Question 1975

Which part of 'Valerian' is used for its sedative properties?

Roots and Rhizomes✔️
Flowers
Leaves
Seeds

Correct Answer Logic:

Valeriana officinalis is used for anxiety and sleep disorders.

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Biology QUESTION #4211

Question 1976

Fibrocartilage is found in:

Trachea
Nose
Knee joint✔️
Ear flaps

Correct Answer Logic:

Fibrocartilage is found in knee joints.

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The Title 28 of the United States Code QUESTION #3712

Question 1977

Alice offers to sell her car to Bob for $\text{\$5,000}$. She says, 'I will keep this offer open for 10 days.' Three days later, Alice sells the car to Charlie. Bob hears about the sale to Charlie from a mutual friend and immediately calls Alice to accept the offer. Is there a contract between Alice and Bob?

Yes, because Alice promised to keep the offer open for 10 days.
No, because the offer was revoked when Alice sold the car to Charlie and Bob learned of it.✔️
Yes, because Bob accepted before the 10-day period expired.
No, because the car was already gone, making the contract 'physically impossible.'

Correct Answer Logic:

Under common law, an offer can be revoked at any time before acceptance unless there is consideration to keep it open (an option contract). Revocation is effective when the offeree receives reliable information that the offeror has taken action inconsistent with the offer (indirect revocation).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3264

Question 1978

The 'Vestibular System' in the ear is responsible for:

Hearing high pitches
Sense of equilibrium and spatial orientation✔️
Converting sound to noise
Draining fluid

Correct Answer Logic:

The utricle, saccule, and semicircular canals manage balance.

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Biology QUESTION #4274

Question 1979

All are the functions of lysosome EXCEPT:

Intracellular digestion
Removal of the waste
Autophagy
Lipid synthesis✔️

Correct Answer Logic:

Lysosomes are involved in intracellular digestion, waste removal, and autophagy. Lipid synthesis occurs in the smooth endoplasmic reticulum, not in lysosomes.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3615

Question 1980

Substituting a genuine drug with look-alike exhausted or exhausted materials is called:

Sophistication
Admixture
Substitution✔️
Deterioration

Correct Answer Logic:

Substitution is the replacement of the original with something totally different or inferior.

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