Reading Mode - Questions

Reading and Writing (Module-1) QUESTION #5355

Bosco Verticale, a residential complex in Milan featuring towers covered in plants, has been a symbol of green architecture since 2014. Architect Stefano Boeri designed it to promote urban biodiversity. However, critics are cautious; they point out that even though the trees were specially grown for this project, it is still uncertain if they will be able to survive in such an atypical environment. According to the text, why are some critics skeptical of the concept behind Bosco Verticale?

Some essential aspects of Bosco Verticale's design are difficult to adapt to locations other than Milan.
The plant life on Bosco Verticale ended up being less varied than Boeri had envisioned it would be.
The construction of Bosco Verticale was no less environmentally damaging than the construction of more conventional buildings is.
It is unclear whether Bosco Verticale can support the plant life included in its design.✔️

Correct Answer Logic:

The text states that critics aren't sure if the trees can 'thrive in this unusual setting,' which matches option D.

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General Science and Ability QUESTION #198

Question 362

In fiber structures, light is guided through the core due to total internal:

Reflection✔️
Refraction
Diffraction
None of these

Correct Answer Logic:

Fiber optics work based on Total Internal Reflection (TIR).

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Chemistry QUESTION #4347

Question 363

Which of the following best explains why phenol reacts with aqueous $NaOH$, but alcohols do not?

Phenol has a lower boiling point than alcohol
Alcohols contain a strong O-H bond that cannot be broken by weak bases
Phenol forms hydrogen bonding that facilitates ionization
Phenol is weakly acidic due to resonance stabilization of phenoxide ion✔️

Correct Answer Logic:

Phenol ($C_6H_5OH$) is acidic ($pK_a \approx 10$) because the phenoxide ion ($C_6H_5O^-$) is stabilized by resonance with the benzene ring. Alcohols are not acidic enough to react with $NaOH$.

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Chemistry QUESTION #1093

Question 364

Which of the following are paramagnetic? A. [NiCl$_4$]$^{2-}$ B. Ni(CO)$_4$ C. [Ni(CN)$_4$]$^{2-}$ D. [Ni(H$_2$O)$_6$]$^{2+}$ E. Ni(PPh$_3$)$_4$

A and D only✔️
A, D and E only
A and C only
B and E only

Correct Answer Logic:

Ni$^{2+}$ is [Ar]3d$^8$. Paramagnetic if unpaired electrons: A: [NiCl$_4$]$^{2-}$: Cl$^-$ is weak field → tetrahedral, sp$^3$, 2 unpaired → paramagnetic ✓. B: Ni(CO)$_4$: Ni(0), CO is strong field → d$^{10}$, diamagnetic. C: [Ni(CN)$_4$]$^{2-}$: CN$^-$ strong field → square planar, dsp$^2$, 0 unpaired → diamagnetic. D: [Ni(H$_2$O)$_6$]$^{2+}$: H$_2$O weak field → octahedral, 2 unpaired → paramagnetic ✓. E: Ni(PPh$_3$)$_4$: Ni(0), d$^{10}$ → diamagnetic. Paramagnetic: A and D.

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English QUESTION #2746

Question 365

Choose the CORRECT sentence.

Between you and I✔️
this is wrong.
Between you and me
this is wrong.

Correct Answer Logic:

this is wrong.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3226

Question 366

Which 'Vitamin' is produced in the skin upon exposure to UV light?

Vitamin A
Vitamin B
Vitamin D✔️
Vitamin K

Correct Answer Logic:

The skin synthesizes a precursor that the liver and kidney convert to active Vitamin D.

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Chemistry QUESTION #4357

Question 367

Which set of quantum numbers is NOT allowed for an electron?

$n=2,\ l=1,\ m=0,\ s=+\frac{1}{2}$
$n=3,\ l=0,\ m=0,\ s=-\frac{1}{2}$
$n=2,\ l=2,\ m=1,\ s=+\frac{1}{2}$✔️
$n=1,\ l=0,\ m=0,\ s=+\frac{1}{2}$

Correct Answer Logic:

For $n=2$, the allowed values of $l$ are $0$ and $1$ only (since $l$ ranges from $0$ to $n-1$). Having $l=2$ when $n=2$ is not allowed, making this set invalid.

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Mathematics QUESTION #1302

Question 368

For the power series solution of $(x^2+1)y''+xy'-y=0$, we assume $y=\sum_{n=0}^\infty a_n x^n$. This ODE has an ordinary point at $x=0$ because:

The coefficients are all constants
All singular points are at $x=\pm i$, not at $x=0$✔️
The equation is linear
The ODE is homogeneous

Correct Answer Logic:

Ordinary points are where $P(x)=1+x^2\neq0$. The singular points are where $P(x)=0\Rightarrow x^2+1=0\Rightarrow x=\pm i$. Since $x=0$ is not a singular point, it is an ordinary point, and a power series solution $\sum a_n x^n$ converges in a neighbourhood of $x=0$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3492

Question 369

The botanical name of 'Senna' is:

Cassia angustifolia✔️
Aloe barbadensis
Digitalis lanata
Glycyrrhiza glabra

Correct Answer Logic:

Cassia angustifolia (Indian Senna) is commonly used in pharmacy.

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Others section QUESTION #4795

Question 370

Locations that experience equal intensity of earthquake impact are connected by which lines?

Snowlines
Seismic belts
Isoseismal lines✔️
Epicentral lines

Correct Answer Logic:

Isoseismal lines (or seismic lines) connect points on a map that experienced equal intensity of shaking during an earthquake, helping scientists map the impact pattern.

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Psychology QUESTION #1460

Question 371

Which type of memory has the longest duration and largest capacity, often storing information for a lifetime?

Sensory memory
Short-term memory
Long-term memory✔️
Working memory

Correct Answer Logic:

Long-term memory (LTM) has virtually unlimited capacity and can store information for a lifetime. It includes declarative memory (explicit: episodic and semantic) and non-declarative memory (implicit: procedural, priming). Sensory memory lasts milliseconds; short-term memory holds about 7±2 items for 15–30 seconds; working memory is the active, limited-capacity system for immediate cognitive tasks.

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Agronomy QUESTION #2074

Question 372

In the context of water use efficiency (WUE), deficit irrigation strategy is agronomically justified when:

Full irrigation always maximizes both yield and profit regardless of water scarcity
Marginal value of the last unit of water applied to the crop (in terms of yield gain) falls below the marginal cost of water supply — intentionally applying less than full ET requirement increases WUE and economic returns per unit water while accepting a modest, manageable yield reduction✔️
Water is abundant and energy costs are negligible
Soil salinity prevents full water application

Correct Answer Logic:

Deficit irrigation deliberately applies water below full ET demand during less sensitive growth stages, exploiting crop drought tolerance to save water. The agronomic justification is economic: when water is scarce or costly, WUE (kg yield per m³ water) and profit per unit water is maximized by deficit irrigation — even with modest yield reduction — compared to fully irrigating a smaller area.

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Basic Mathematics QUESTION #4494

Question 373

What is the GCD of $24$ and $36$?

$6$
$12$✔️
$8$
$4$

Correct Answer Logic:

Factors of $24$: $1, 2, 3, 4, 6, 8, 12, 24$. Factors of $36$: $1, 2, 3, 4, 6, 9, 12, 18, 36$. Greatest common = $12$

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Mechanical Engineering QUESTION #2516

Question 374

In normal-tangential (n-t) coordinates, the acceleration of a particle moving along a curved path with speed $v$ and radius of curvature $\rho$ is:

Only the tangential component $\dot{v}\,\hat{e}_t$
Only the normal component $\frac{v^2}{\rho}\hat{e}_n$
Both $a_t = \dot{v}$ tangentially and $a_n = \frac{v^2}{\rho}$ normally✔️
A single vector directed toward the center of curvature

Correct Answer Logic:

In n-t coordinates: $\mathbf{a}=\dot{v}\hat{e}_t + \frac{v^2}{\rho}\hat{e}_n$. The tangential component $a_t=\dot{v}$ reflects speed change; the normal (centripetal) component $a_n=v^2/\rho$ reflects direction change.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3654

Question 375

The 'Stomata' are tiny pores mostly found on:

Roots
Stems
Leaves✔️
Seeds

Correct Answer Logic:

Stomata are used for gas exchange and transpiration.

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Others section QUESTION #4815

Question 376

Which power was NOT part of the Axis alliance during World War II?

Germany
Soviet Union✔️
Italy
Japan

Correct Answer Logic:

The Axis powers in World War II comprised Germany, Italy, and Japan. The Soviet Union was part of the Allied powers after Germany invaded it in June 1941 (Operation Barbarossa).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3287

Question 377

Which gas is commonly used for 'Chemical Sterilization' of heat-sensitive medical equipment?

Oxygen
Ethylene Oxide (EtO)✔️
Carbon Dioxide
Nitrogen

Correct Answer Logic:

Ethylene oxide is a potent alkylating agent used for plastics and optical instruments.

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Medicinal Chemistry and Biopharmaceutics QUESTION #3821

Question 378

How many grams of ingredient A are required to prepare $500$ mL of a stock solution, from which $25$ mL diluted to $100$ mL yields a $1{:}2000$ (w/v) solution?

$0.1$ g
$1$ g✔️
$1.25$ g
$2.5$ g

Correct Answer Logic:

Final concentration $= \dfrac{1}{2000} = 0.05\%\ \text{w/v}$. In $100$ mL $= 0.05$ g. In $25$ mL of stock: $0.05$ g. Stock concentration $= \dfrac{0.05}{25} \times 100 = 0.2\%\ \text{w/v}$. In $500$ mL stock: $\dfrac{0.2 \times 500}{100} = 1\ \text{g}$.

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Psychology QUESTION #1473

Question 379

Which of the following factors is most likely to influence the accuracy of eyewitness testimony?

The eyewitness's level of education
The eyewitness's emotional state during the event✔️
The time of day the event occurs
The presence of the police during the event

Correct Answer Logic:

Research by Elizabeth Loftus and others has shown that the eyewitness's emotional state during the event is a major factor affecting memory accuracy. High emotional arousal (especially fear or stress) can impair accurate encoding and recall — the 'weapon focus effect' is one example. Post-event misinformation, leading questions, and stress also distort memories. Education level and time of day have relatively little direct effect on accuracy.

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Physics QUESTION #1166

Question 380

The internal energy of an ideal gas is __________ dependent.

Pressure
Temperature✔️
Volume
All of these

Correct Answer Logic:

For an ideal gas, the internal energy depends only on temperature. This is because ideal gas molecules have no intermolecular forces and therefore no potential energy — only kinetic energy which is proportional to temperature: $U = nC_vT$. It is independent of pressure and volume.

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