datavorous/entrance-exam-dataset huggingface dataset:
What is the enthalpy of solution at infinite dilution?

Options:
A The enthalpy change when one mole of a substance dissolves in a large amount of solvent.
B The enthalpy change when one mole of a substance dissolves in a very small amount of solvent.
C The enthalpy change when one mole of a substance dissolves in an infinite amount of solvent.
D The enthalpy change when one mole of a substance dissolves in a saturated solution.

The correct answer is:
The enthalpy change when one mole of a substance dissolves in an infinite amount of solvent.

Solution:
The enthalpy of solution at infinite dilution is the enthalpy change observed when one mole of a substance dissolves in an infinite amount of solvent, where interactions between the solute particles are negligible.

Topic: Chemistry, Thermodynamics (C), NEET
What is the enthalpy of solution (∆solH) for the dissolution of NaCl(s) in water, given that ∆latticeH = +788 kJ mol–1 and ∆hydH = –784 kJ mol–1?

Options:
A +4 kJ mol–1
B +784 kJ mol–1
C –4 kJ mol–1
D +788 kJ mol–1

The correct answer is:
+4 kJ mol–1

Solution:
The enthalpy of solution for the dissolution of NaCl(s) is +4 kJ mol–1, calculated by subtracting the value of ∆hydH from ∆latticeH.

Topic: Chemistry, Thermodynamics (C), NEET
What is the enthalpy of solution?

Options:
A The enthalpy change associated with the addition of a specified amount of solute to an infinite amount of solvent.
B The enthalpy change associated with the addition of a specified amount of solute to a specified amount of solvent at a constant temperature.
C The enthalpy change associated with the addition of an infinite amount of solute to a specified amount of solvent.
D The enthalpy change associated with the evaporation of a solvent.

The correct answer is:
The enthalpy change associated with the addition of a specified amount of solute to a specified amount of solvent at a constant temperature.

Solution:
Enthalpy of solution is the enthalpy change associated with the addition of a specified amount of solute to a specified amount of solvent at a constant temperature and pressure.

Topic: Chemistry, Thermodynamics (C), NEET
What is the entropy change (in $\mathrm{JK}^{-1} \mathrm{~mol}^{-1}$ ) when one mole of ice is converted into water at $0^{\circ} \mathrm{C}$ ?
(The enthalpy change for the conversion of ice to liquid water is $6.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ at $0^{\circ} \mathrm{C}$ )

Options:
A 20.13
B 2.013
C 2.198
D 21.98

The correct answer is:
21.98

Solution:
$\mathrm{S}=\frac{q_{r e v}}{\mathrm{~T}}=\frac{6000}{273}$
$=21.978=21.98 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}.$

Topic: Chemistry, Thermodynamics (C), NEET, NEET 2003
What is the environment of each motif like in a crystal?

Options:
A Different throughout the crystal
B The same throughout the crystal, including on the surface
C Non-existent
D Dependent on lattice points

The correct answer is:
The same throughout the crystal, including on the surface

Solution:
The environment of each motif in a crystal is the same throughout the crystal, except for on the surface, as stated in the paragraph.

Topic: Chemistry, Solid State, NEET
What is the enzyme complex required for the reaction converting fibrinogen into fibrins?

Options:
A Thrombin
B Prothrombin
C Thrombokinase
D Calcium ions

The correct answer is:
Thrombokinase

Solution:
An enzyme complex, thrombokinase, is required for the reaction converting fibrinogen into fibrins.

Topic: Biology, Body Fluids and Circulation, NEET
What is the epidermal cell modification in plants which prevents water loss?

Options:
A Fusiform Cells
B Bulliform Cells
C Cuticles
D Trichomes

The correct answer is:
Bulliform Cells

Solution:
In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called bulliform cells or motor cells. Bulliform cells help in folding and unfolding of grass leaves.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the epithelium lining of PCT?

Options:
A Simple cuboidal brush border
B Simple columnar
C Simple squamous
D Stratified cuboidal

The correct answer is:
Simple cuboidal brush border

Solution:
PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the equation for the Gibbs energy (G) as a function of enthalpy (H) and entropy (S)?

Options:
A G = H - S
B G = H + S
C G = H × S
D G = H / S

The correct answer is:
G = H - S

Solution:
The equation for Gibbs energy (G) is G = H - TS, where H is enthalpy and S is entropy.

Topic: Chemistry, Thermodynamics (C), NEET
What is the equation for work (w) in the case of isothermal reversible expansion of an ideal gas?

Options:
A w = Pex (Vf - Vi)
B w = –Pex (Vf - Vi)
C w = nRT ln(Vf/Vi)
D w = –nRT ln(Vf/Vi)

The correct answer is:
w = nRT ln(Vf/Vi)

Solution:
The equation for work in the case of isothermal reversible expansion is w = nRT ln(Vf/Vi).

Topic: Chemistry, Thermodynamics (C), NEET
What is the equation of the equipotential surface where the potential is zero for two point charges of magnitude +q and -q placed at (-d/2, 0, 0) and (d/2, 0, 0) respectively?

Options:
A x = d/4
B x = -d/4
C x = 0
D x = d

The correct answer is:
x = 0

Solution:
Correct Option is : (C)
x = 0

Topic: Chemistry, Capacitance, NEET
What is the equation that combines Boyle's Law, Charles' Law, and Avogadro's Law known as?

Options:
A Boyle's equation
B Charles' equation
C Ideal gas equation
D Universal gas equation

The correct answer is:
Ideal gas equation

Solution:
The equation that combines Boyle's Law, Charles' Law, and Avogadro's Law is known as the ideal gas equation.

Topic: Chemistry, States of Matter, NEET
What is the equation that relates entropy change (∆S) to heat change (q) and temperature (T) for a reversible reaction?

Options:
A ∆S = q / T
B ∆S = q * T
C ∆S = q - T
D ∆S = q + T

The correct answer is:
∆S = q / T

Solution:
The relationship between entropy change (∆S), heat change (q), and temperature (T) for a reversible reaction is given by ∆S = q / T.

Topic: Chemistry, Thermodynamics (C), NEET
What is the equation used to describe the logistic growth model?

Options:
A Nₜ = Nₒ eʳᵗ
B dN/dt= rN (K:N/K)
C Nₜ₊₁ = Nₜ +[(B+I)–(D+E)]
D dN/dt = (b – D) × N

The correct answer is:
dN/dt= rN (K:N/K)

Solution:
The equation used to describe the logistic growth model is dN/dt= rN (K:N/K). This equation describes the growth of a population with limited resources, where r is the intrinsic rate of natural increase and K is the carrying capacity.

Topic: Biology, Organisms and Populations, NEET
What is the equation used to determine ∆G?

Options:
A ∆G = ∆H + T∆S
B ∆G = ∆H - T∆S
C ∆G = ∆H x T∆S
D ∆G = ∆H / T∆S

The correct answer is:
∆G = ∆H - T∆S

Solution:
The paragraph presents the equation ∆G = ∆H - T∆S for determining the Gibbs energy.

Topic: Chemistry, Surface Chemistry, NEET
What is the equilibrium concentration of each of the substances in the equilibrium when the initial concentration of ICl was 0.78 M? 2ICl(g) ⇌ I2(g) + Cl2(g); Kc = 0.14

Options:
A [ICl] = 0.44 M, [I2] = 0.167 M, [Cl2] = 0.167 M
B [ICl] = 0.39 M, [I2] = 0.20 M, [Cl2] = 0.20 M
C [ICl] = 0.45 M, [I2] = 0.15 M, [Cl2] = 0.15 M
D [ICl] = 0.30 M, [I2] = 0.24 M, [Cl2] = 0.24 M

The correct answer is:
[ICl] = 0.44 M, [I2] = 0.167 M, [Cl2] = 0.167 M

Solution:
Correct Option is : (A)
[ICl] = 0.44 M, [I2] = 0.167 M, [Cl2] = 0.167 M

Topic: Chemistry, Ionic Equilibrium, NEET
What is the equilibrium constant expression for the reaction
P4(s)+5O2(g)⇌P4O10(s)

Options:
A Kc[P4O10][P4][O2]5
B Kc=1[O2]5
C Kc=[O2]5
D K c = P 4 O 10 5 P 4 O 2

The correct answer is:
Kc=1[O2]5

Solution:
As both P4 and P4O10 are solid so they are neglected.
KC=1(O2)5

Topic: Chemistry, Chemical Equilibrium, NEET
What is the equilibrium constant (Kb) for the base-dissociation equilibrium reaction mentioned in the paragraph?

Options:
A Kb = [BH+][OH-] / [B]
B Kb = [BH+][OH-]
C Kb = [B] / [OH-]
D Kb = [BH+][B]

The correct answer is:
Kb = [BH+][OH-] / [B]

Solution:
The equilibrium constant (Kb) for the base-dissociation equilibrium reaction is Kb = [BH+][OH+] / [B].

Topic: Chemistry, Ionic Equilibrium, NEET
What is the equilibrium constant \((\mathrm{Kc})\) for the reaction \(\mathrm{N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\) at \(800 \mathrm{~K}\), given the concentrations: \(\left[N_2\right]=3.0 \times 10^{-3} \mathrm{M},\left[\mathrm{O}_2\right]=4.2 \times 10^{-3} \mathrm{M}\), and \([N O]=2.8 \times 10^{-3} \mathrm{M} ?\)

Options:
A \(4.00 \times 10^3\)
B \(2.00 \times 10^3\)
C \(1.06 \times 10^3\)
D \(1.50 \times 10^3\)

The correct answer is:
\(1.06 \times 10^3\)

Solution:
Correct Option is : (C)
\(1.06 \times 10^3\)

Topic: Chemistry, Ionic Equilibrium, NEET
What is the equilibrium constant of reaction c C + d D⇋ a A + b B, if equilibrium constant of the given reaction a A + b B⇋ c C + dD is Kc.

Options:
A Kc
B (1/Kc)
C [Kc]2
D (Kc)3

The correct answer is:
(1/Kc)

Solution:
Correct Option is : 2
(1/Kc)

Topic: Chemistry, Chemical Equilibrium, NEET
What is the equilibrium distance referred to in the definition of bond length?

Options:
A The distance between two atoms at a fixed temperature
B The distance at which the bond is most stable
C The shortest distance between two atoms
D The distance between two atoms in a gaseous state

The correct answer is:
The distance at which the bond is most stable

Solution:
Bond length is defined as the equilibrium distance, which is the distance at which the bond is most stable.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the equilibrium expression for the reaction
P 4 s +5 O 2 g ⇌ P 4 O 1 0 s ?

Options:
A KC=P4O105P4O2
B KC=1O25
C KC=P4O10P4O2
D KC=O25

The correct answer is:
KC=1O25

Solution:
In the expression for equilibrium constant species in solid state are not written (i.e, their molar concentrations are taken as 1)
P4s+5O2s⇌P4O10s
So KC=1O25

Topic: Chemistry, Chemical Equilibrium, NEET
What is the equivalent resistance between A and B in the given circuit?

Options:
A 38 Ω
B 83 Ω
C 2 Î©
D 4 Î©

The correct answer is:
83 Ω

Solution:
AC and AD in series =2 Ω+2 Ω=4 Ω=AD

ACD is parallel to AD

∴ R=R1 R2R1+R2=4×44+4=2 Ω

Similarly, AD is in series with DE

∴ AE=2 Ω

AEB=4 Ω parallel with AB=8 Ω

R=R1 R2R1+R2=4×88+4=83 Ω

Topic: Physics, Current Electricity, NEET
What is the ES complex in enzyme action?

Options:
A The final product of the reaction
B A short-lived intermediate state
C The substrate alone
D The enzyme-product complex

The correct answer is:
A short-lived intermediate state

Solution:
The ES complex is a short-lived intermediate state that is produced when the substrate binds to the active site of the enzyme.

Topic: Biology, Biomolecules (B), NEET
What is the essence of Darwinian theory about evolution?

Options:
A Adaptive radiation
B Convergent evolution
C Natural selection
D None of the above

The correct answer is:
Natural selection

Solution:
Darwin's theory of evolution is based on the principle of natural selection, which states that organisms that are better suited to their environment will have a higher chance of survival and reproduction.

Topic: Biology, Evolution, NEET
What is the essential chemical component of many co-enzymes?

Options:
A Proteins.
B Metal ions.
C Vitamins.
D Organic compounds.

The correct answer is:
Vitamins.

Solution:
The essential chemical components of many co-enzymes are vitamins, such as niacin in coenzyme nicotinamide adenine dinucleotide (NAD) and NADP.

Topic: Biology, Biomolecules (B), NEET
What is the essential condition for the formation of each bond in Lewis dot structures?

Options:
A The donation of an electron pair
B The donation of a proton pair
C The donation of a neutron pair
D The donation of an electron and a proton pair

The correct answer is:
The donation of an electron pair

Solution:
Each bond in Lewis dot structures is formed as a result of sharing an electron pair between the atoms.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the essential role of superconducting magnets in MRI systems?

Options:
A To generate X-rays
B To produce ultrasound
C To create a strong magnetic field for imaging
D To administer medications

The correct answer is:
To create a strong magnetic field for imaging

Solution:
Superconducting magnets in MRI systems play an essential role by creating a strong magnetic field for imaging purposes.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the estimate made by Robert May about the total number of species on earth?

Options:
A 20 to 50 million
B 7 million
C 1.5 million
D 10 million

The correct answer is:
7 million

Solution:
Robert May, a scientifically sound estimate made by Robert May places the global species diversity at about 7 million.

Topic: Biology, Biodiversity and its Conservation, NEET
What is the estimate of the number of species that might be wiped out in the next 100 years if the present trends continue?

Options:
A Half of all species on earth
B 10% of all species on earth
C 25% of all species on earth
D Not specified

The correct answer is:
Half of all species on earth

Solution:
Ecologists warn that if the present trends continue, nearly half of all species on earth might be wiped out within the next 100 years.

Topic: Biology, Biodiversity and its Conservation, NEET
What is the estimated acceleration of an electron and proton when they are 1 Å (= 10^-10 m) apart due to their mutual electrical attraction?

Options:
A Electron: 2.50 × ${{10}^{22}}$m/s², Proton: 1.40 × ${{10}^{19}}$10^19 m/s²
B Electron: 9.99 × ${{10}^{9}}$m/s², Proton: 9.99 × ${{10}^{19}}$ m/s²
C Electron: 1.60 × ${{10}^{-19}}$m/s², Proton: 1.60 × ${{10}^{-19}}$ m/s²
D Electron: 1.76 × ${{10}^{11}}$ m/s², Proton: 1.76 × ${{10}^{11}}$ m/s²

The correct answer is:
Electron: 2.50 × ${{10}^{22}}$m/s², Proton: 1.40 × ${{10}^{19}}$10^19 m/s²

Solution:
Correct Option is : (A)
Electron: 2.50 × ${{10}^{22}}$m/s², Proton: 1.40 × ${{10}^{19}}$10^19 m/s²

Topic: Chemistry, Electrostatics, NEET
What is the estimated average drift speed of conduction electrons in a copper wire with a cross-sectional area of 1.0 × ${{10}^{-7}}{{m}^{2}}$, carrying a current of 1.5 A?

Options:
A 1.8 mm/s
B 1.1 mm/s
C 3.4 mm/s
D 2.3 mm/s

The correct answer is:
1.1 mm/s

Solution:
Correct Option is : (B)
1.1 mm/s

Topic: Chemistry, Current Electricity, NEET
What is the estimated average pressure sustained by the femurs, each with a cross-sectional area of 10 cm², supporting the upper part of a human body with a mass of 40 kg?

Options:
A 4 × ${{10}^{6}}~N{{m}^{-2}}$
B 2 × ${{10}^{5}}~N{{m}^{-2}}$
C 4 × ${{10}^{5}}~N{{m}^{-2}}$
D 2 × ${{10}^{6}}~N{{m}^{-2}}$

The correct answer is:
2 × ${{10}^{5}}~N{{m}^{-2}}$

Solution:
Correct Option is : (B)
2 × ${{10}^{5}}~N{{m}^{-2}}$

Topic: Chemistry, Mechanical Properties of Fluids, NEET
What is the estimated average thermal energy of a helium atom at room temperature (27 °C)?

Options:
A 6.21 × ${{10}^{-20}}$ J
B 6.21 × ${{10}^{-21}}$ J
C 6.21 × ${{10}^{-22}}$ J
D 6.21 × ${{10}^{-23}}$ J

The correct answer is:
6.21 × ${{10}^{-21}}$ J

Solution:
Correct Option is : (B)
6.21 × ${{10}^{-21}}$ J

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estimated average thermal energy of a helium atom at the temperature of 10 million kelvin (the typical core temperature in the case of a star)?

Options:
A 2.07 × ${{10}^{-20}}$ J
B 2.07 × ${{10}^{-16}}$J
C 2.455 × ${{10}^{-22}}$ J
D 2.455 × ${{10}^{-20}}$ J

The correct answer is:
2.07 × ${{10}^{-16}}$J

Solution:
Correct Option is : (B)
2.07 × ${{10}^{-16}}$J

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estimated average thermal energy of a helium atom at the temperature on the surface of the Sun (6000 K)?

Options:
A 1.241 × ${{10}^{-20}}$ J
B 1.241 × ${{10}^{-19}}$ J
C 2.455 × ${{10}^{-22}}$ J
D 2.455 × ${{10}^{-20}}$ J

The correct answer is:
1.241 × ${{10}^{-19}}$ J

Solution:
Correct Option is : (B)
1.241 × ${{10}^{-19}}$ J

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estimated collision frequency of a nitrogen molecule in a cylinder containing nitrogen at 2.0 atm and a temperature of 17°C, assuming a nitrogen molecule radius of approximately 1.0 Å and a molecular mass of ${{N}_{2}}$= 28.0 u?

Options:
A 2.5 x ${{10}^{10}}$ collisions per second
B 5.0 x ${{10}^{10}}$ collisions per second
C 4.5 x ${{10}^{9}}$collisions per second
D 2.0 x ${{10}^{9}}$ collisions per second

The correct answer is:
4.5 x ${{10}^{9}}$collisions per second

Solution:
Correct Option is : (C)
4.5 x ${{10}^{9}}$collisions per second

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estimated force exerted on you by a raindrop falling from a kilometer above the ground, given that the rate of change of momentum is force?

Options:
A 1.7× 102 N
B 1.7× 103 N
C 1.7× 104 N
D 1.7× 105 N

The correct answer is:
1.7× 102 N

Solution:
Correct Option is : (A)
1.7× 102 N

Topic: Chemistry, Motion In One Dimension, NEET
What is the estimated force on a 10 cm section of wire A, which is positioned 4.0 cm away from a parallel wire B carrying a current of 5.0 A in the same direction as wire A, given that wire A itself carries a current of 8.0 A?

Options:
A 1.0 × 10−4N
B 2.0 × 10−4N
C 2.5 × 10−5N
D 5.0 × 10−5N

The correct answer is:
2.5 × 10−5N

Solution:
Correct Option is : (C)
2.5 × 10−5N

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the estimated heat released by a mole of a substance with a permanent electric dipole moment of magnitude ${{10}^{-29}}$ C m when it is polarized (at low temperature) by applying a strong electrostatic field of magnitude ${{10}^{6}}$ V${{m}^{-1}}$ and the direction of the field is suddenly changed by an angle of 60º?

Options:
A 1.5 J
B 3.0 J
C 4.5 J
D 6.0 J

The correct answer is:
3.0 J

Solution:
Correct Option is : (B)
3.0 J

Topic: Chemistry, Capacitance, NEET
What is the estimated height of the dinosaur Tyrannosaurus rex?

Options:
A 20 feet
B 50 feet
C 100 feet
D 200 feet

The correct answer is:
20 feet

Solution:
The dinosaur Tyrannosaurus rex was about 20 feet in height and had huge fearsome dagger:like teeth.

Topic: Biology, Evolution, NEET
What is the estimated magnitude of the magnetic field (B) inside a closely wound solenoid 80 cm long with 5 layers of windings, each having 400 turns, and a diameter of 1.8 cm, when it carries a current of 8.0 A?

Options:
A 1.2 × 10–2T
B 2.5 × 10–2T
C 3.6 × 10–2T
D 4.8 × 10–2T

The correct answer is:
2.5 × 10–2T

Solution:
Correct Option is : (B)
2.5 × 10–2T

Topic: Chemistry, Magnetic Effects of Current, NEET
What is the estimated mean free path of a nitrogen molecule in a cylinder containing nitrogen at 2.0 atm and a temperature of 17°C, assuming the radius of a nitrogen molecule is approximately 1.0 Å and the molecular mass of ${{N}_{2}}$is 28.0 u?

Options:
A 2.22 × ${{10}^{-7}}$ m
B 1.11 × ${{10}^{-7}}$ m
C 1.11 × ${{10}^{-8}}$ m
D 2.22 × ${{10}^{-8}}$ m

The correct answer is:
1.11 × ${{10}^{-8}}$ m

Solution:
Correct Option is : (C)
1.11 × ${{10}^{-8}}$ m

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estimated momentum of a raindrop, approximately 4 mm in diameter, when it hits the ground from a kilometer altitude?

Options:
A 2.5 × 10-5kg
B 3.0 × 10-5kg
C 3.4 × 10-5kg
D 4.0 × 10-5kg

The correct answer is:
3.4 × 10-5kg

Solution:
Correct Option is : (C)
3.4 × 10-5kg

Topic: Chemistry, Motion In One Dimension, NEET
What is the estimated number of genes in the human genome?

Options:
A 80,000–1,40,000 genes
B 30,000 genes
C 50,000 genes
D 99.9% of the genome

The correct answer is:
30,000 genes

Solution:
The total number of genes is estimated at 30,000.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the estimated number of known and described species on Earth?

Options:
A 1.7-1.8 million
B 2 million
C 1.7 billion
D 500,000

The correct answer is:
1.7-1.8 million

Solution:
The number of known and described species on Earth ranges between 1.7-1.8 million.

Topic: Biology, The Living World, NEET
What is the estimated percentage difference in wavelength for the 1st line of the Lyman series in 1H and 2H, considering the mass of the 1H nucleus to be 1.6725 × 10–27 kg, the mass of the 2H nucleus to be 3.3374 × 10–27 kg, and the mass of the electron to be 9.109 × 10–31 kg?

Options:
A 2.714 × 10–2 %
B 3.271 × 10–2 %
C 4.128 × 10–2 %
D 5.276 × 10–2 %

The correct answer is:
2.714 × 10–2 %

Solution:
Correct Option is : (A)
2.714 × 10–2 %

Topic: Chemistry, Atomic Physics, NEET
What is the estimated pressure difference between the lower and upper surfaces of the wings of a fully loaded Boeing aircraft with a mass of 3.3 × ${{10}^{5}}$kg, a total wing area of 500 ${{m}^{2}}$, and in level flight at a speed of 960 km/h?

Options:
A 13 × ${{10}^{5}}$ $N{{m}^{-2}}$
B 6.5 × ${{10}^{5}}N{{m}^{-2}}$
C 7.4× ${{10}^{5}}N{{m}^{-2}}$
D 14.8 × ${{10}^{5}}N{{m}^{-2}}$

The correct answer is:
6.5 × ${{10}^{5}}N{{m}^{-2}}$

Solution:
Correct Option is : (B)
6.5 × ${{10}^{5}}N{{m}^{-2}}$

Topic: Chemistry, Mechanical Properties of Fluids, NEET
What is the estimated self-inductance of the circuit if the current in a circuit falls from 5.0 A to 0.0 A in 0.1 s, and an average electromotive force (emf) of 200 V is induced?

Options:
A 0.1 H
B 0.2 H
C 1 H
D 4 H

The correct answer is:
4 H

Solution:
Correct Option is : (D)
4 H

Topic: Chemistry, Electromagnetic Induction, NEET
What is the estimated temperature of the part of the flame in contact with the brass boiler with a base area of 0.15 m² and thickness of 1.0 cm, when it boils water at a rate of 6.0 kg/min on a gas stove? Given that the thermal conductivity of brass is 109 J s⁻¹ m⁻¹ K⁻¹ and the heat of vaporization of water is 2256 × 10³ J kg⁻¹.

Options:
A 1125°C
B 237.98°C
C 675.37°C
D 454.22°C

The correct answer is:
237.98°C

Solution:
Correct Option is : (B)
237.98°C

Topic: Chemistry, Thermal Properties of Matter, NEET
What is the estimated time frame for when giant ferns became coal deposits?

Options:
A 100 million years ago
B 200 million years ago
C 65 million years ago
D 20 million years ago

The correct answer is:
200 million years ago

Solution:
Giant ferns were present but they all fell to form coal deposits slowly, which happened around 200 million years ago.

Topic: Biology, Evolution, NEET
What is the estimated time required in microseconds (us) for a raindrop to flatten when observed at approximately a kilometer altitude above the ground?

Options:
A 15 us
B 20 us
C 25 us
D 30 us

The correct answer is:
30 us

Solution:
Correct Option is : (D)
30 us

Topic: Chemistry, Motion In One Dimension, NEET
What is the estimated total number of air molecules (inclusive of oxygen, nitrogen, water vapor, and other constituents) in a room with a capacity of 25.0 m³ at a temperature of 27°C and 1 atm pressure?

Options:
A Approximately 1.2 x 10^24 molecules
B Approximately 2.3 x 10^24 molecules
C Approximately 4.5 x 10^26 molecules
D Approximately 6.1 x 10^26 molecules

The correct answer is:
Approximately 6.1 x 10^26 molecules

Solution:
Correct Option is : (D)
Approximately 6.1 x 10^26 molecules

Topic: Chemistry, Kinetic Theory of Gases, NEET
What is the estrogen derivative used in combination with the progesterone derivative in birth control pills?

Options:
A Ethynylestradiol
B Novestrol
C Antibiotics
D Norethindrone

The correct answer is:
Ethynylestradiol

Solution:
The estrogen derivative used in combination with the progesterone derivative is ethynylestradiol (novestrol).

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the ethical argument for conserving biodiversity?

Options:
A Ecosystem services
B Intrinsic value
C Aesthetic pleasure
D Moral duty

The correct answer is:
Moral duty

Solution:
The ethical argument for conserving biodiversity relates to what we owe to millions of plant, animal, and microbe species and that we have a moral duty to care for their well:being.

Topic: Biology, Biodiversity and its Conservation, NEET