NEET 2024 Question Paper Mock Test

A bob is whirled in a horizontal plane by means of a string with an initial speed of $\omega \text{rpm}$. The tension in the string is $T$. If speed becomes $2\omega$ while keeping the same radius, the tension in the string becomes:

A particle moving with uniform speed in a circular path maintains:

A logic circuit provides the output $Y$ as per the following truth table: The expression for the output $Y$ is:

In the diagrams below, a strong bar magnet is moving towards solenoid-2 from solenoid-1 with velocity $v$. The magnet is oriented with its North pole (N) facing solenoid-2 and South pole (S) facing solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions:

Given

Match List-I with List-II:

In a uniform magnetic field of $0.049\text{T}$, a magnetic needle performs $20$ complete oscillations in $5\text{seconds}$. The moment of inertia of the needle is $9.8\times 10^{-6}{\text{kg m}}^2$. If the magnitude of magnetic moment of the needle is $x\times 10^{-5}{\text{A m}}^2$, then the value of '$x$ ' is:

In an ideal transformer, the turns ratio $\frac{N_p}{N_s}=\frac{1}{2}$. The ratio $V_s:V_p$ is equal to (the symbols carry their usual meaning):

In a vernier calipers, $(N+1)$ divisions of vernier scale coincide with $N$ divisions of main scale. If $1\text{MSD}$ represents $0.1\text{mm}$, the vernier constant (in $\text{cm}$) is:

A horizontal force $10\text{N}$ is applied to a block $A$ as shown in figure. The mass of blocks $A$ and $B$ are $2\text{kg}$ and $3\text{kg}$, respectively. The blocks slide over a frictionless surface. The force exerted by block $A$ on block $B$ is:

If $x=5\sin \left(\pi t+\frac{\pi }{3}\right)\text{m}$ represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion respectively, are:

The terminal voltage of the battery, whose emf is $10\text{V}$ and internal resistance $1\Omega$, when connected through an external resistance of $4\Omega$ as shown in the figure, is:

Given

If $c$ is the velocity of light in free space, the correct statements about photon among the following are:A. The energy of a photon is $E=h\nu$.B. The velocity of a photon is $c$.C. The momentum of a photon, $p=\frac{h\nu }{c}$.D. In a photon-electron collision, both total energy and total momentum are conserved.E. Photon possesses positive charge.Choose the correct answer:

Match List I with List II for transitions in Hydrogen spectrum (Balmer series):

A tightly wound $100$ turns coil of radius $10\text{cm}$ carries a current of $7\text{A}$. The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as $4\pi \times 10^{-7}\text{SI units}$):

The output ($Y$) of the given logic gate is similar to the output of an/a:

A wire of length '$l$ ' and resistance $100\Omega$ is divided into $10$ equal parts. The first $5$ parts are connected in series while the next $5$ parts are connected in parallel. The two combinations are again connected in series. The resistance of this final combination is:

In the nuclear emission sequence:

The mass number and atomic number of the product $Q$ respectively, are:

The maximum elongation of a steel wire of $1\text{m}$ length if the elastic limit of steel and its Young's modulus, respectively, are $8\times 10^8{\text{N m}}^{-2}$ and $2\times 10^{11}{\text{N m}}^{-2}$ is:

If the monochromatic source in Young's double slit experiment is replaced by white light, then:

At any instant of time $t$, the displacement of any particle is given by $2t-1$ (SI unit) under the influence of force of $5\text{N}$. The value of instantaneous power is (in SI unit):

Consider the following statements A and B and identify the correct answer:A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.B. In a reverse biased pn junction diode, the current measured in ($\mu \text{A}$), is due to majority charge carriers.

Two bodies A and B of same mass undergo completely inelastic one dimensional collision. The body A moves with velocity $v_1$ while body B is at rest before collision. The velocity of the system after collision is $v_2$. The ratio $v_1:v_2$ is:

A light ray enters through a right angled prism at point P with the angle of incidence $30^{\circ }$ as shown in figure. It travels through the prism parallel to its base $BC$ and emerges along the face $AC$. The refractive index of the prism is:

The graph which shows the variation of $\left(\frac{1}{{\lambda }^2}\right)$ and its kinetic energy, $E$ is (where $\lambda$ is de Broglie wavelength of a free particle):

The quantities which have the same dimensions as those of solid angle are:

An unpolarised light beam strikes a glass surface at Brewster's angle. Then:

The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is $2400{\text{g cm}}^2$. The length of the $400\text{g}$ rod is nearly:

A thin flat circular disc of radius $4.5\text{cm}$ is placed gently over the surface of water. If surface tension of water is $0.07{\text{N m}}^{-1}$, then the excess force required to take it away from the surface is:

A thermodynamic system is taken through the cycle $abcda$. The work done by the gas along the path $bc$ is:

A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is $v$ in the direction shown, which one of the following options is correct ($P$ and $Q$ are any highest and lowest points on the wheel, respectively)?

The mass of a planet is $\frac{1}{10}$ th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is:

In the following circuit, the equivalent capacitance between terminal A and terminal B is:

A thin spherical shell is charged by some source. The potential difference between the two points $C$ (center) and $P$ (on the surface) shown in the figure is (Take $\frac{1}{4\pi {ϵ}_0}=9\times 10^9\text{SI units}$, $q=1\mu \text{C}$, $R=3\text{cm}$):

The velocity ($v$) – time ($t$) plot of the motion of a body is shown below. The graph starts from origin, increases linearly to a peak, then decreases linearly to zero velocity at a later time.

The acceleration ($a$) – time ($t$) graph that best suits this motion is:

If the mass of the bob in a simple pendulum is increased to thrice its original mass and its length is made half its original length, then the new time period of oscillation is $\frac{x}{\sqrt{2}}$ times its original time period. Then the value of $x$ is:(Note: Question text adjusted to match standard simplified calculation)

A $10\mu \text{F}$ capacitor is connected to a $210\text{V},50\text{Hz}$ source. The peak current in the circuit is nearly ($\pi =3.14$):

The following graph represents the $T-V$ curves of an ideal gas at three pressures $P_1,P_2$ and $P_3$.

Then the correct relation is:

An iron bar of length $L$ has magnetic moment $M$. It is bent at the middle of its length such that the two arms make an angle $60^{\circ }$ with each other. The magnetic moment of this new magnet is:

The minimum energy required to launch a satellite of mass $m$ from the surface of earth of mass $M$ and radius $R$ in a circular orbit at an altitude of $2R$ from the surface of the earth is:

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If $I$ is the current in the circuit, then in the gap between the plates:

The property which is not of an electromagnetic wave travelling in free space is that:

A metallic bar of Young's modulus $0.5\times 10^{11}{\text{N m}}^{-2}$ and coefficient of linear thermal expansion $10^{-5}{}^{\circ }{\text{C}}^{-1}$, length $1\text{m}$ and area of cross-section $10^{-3}{\text{m}}^2$ is heated from $0{}^{\circ }\text{C}$ to $100{}^{\circ }\text{C}$ without expansion or bending. The compressive force developed in it is:

Choose the correct circuit which can achieve the bridge balance.

A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:A. hold the sheet there if it is magnetic.B. hold the sheet there if it is non-magnetic.C. move the sheet away from the pole with uniform velocity if it is conducting.D. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.Choose the correct statement(s):

If the plates of a parallel plate capacitor connected to a battery are moved close to each other, then:A. the charge stored in it, increases.B. the energy stored in it, decreases.C. its capacitance increases.D. the ratio of charge to its potential remains the same.E. the product of charge and voltage increases.Choose the most appropriate answer:

Two heaters A and B have power rating of $1\text{kW}$ and $2\text{kW}$, respectively. Those two are first connected in series and then in parallel to a fixed power source. The ratio of power outputs for these two cases is:

A small telescope has an objective of focal length $140\text{cm}$ and an eye piece of focal length $5.0\text{cm}$. The magnifying power of telescope for viewing a distant object is:

A force defined by $F=a{t}^2+bt$ acts on a particle at a given time $t$. The factor which is dimensionless, if $a$ and $b$ are constants, is:

The reagents with which glucose does not react to give the corresponding tests/products are:A. Tollen’s reagentB. Schiff’s reagentC. $\text{HCN}$ D. ${\text{NH}}_2\text{OH}$ E. ${\text{NaHSO}}_3$

The energy of an electron in the ground state ($n=1$) for ${\text{He}}^{+}$ ion is $-x\text{J}$. Then, the energy for an electron in $n=2$ state for ${\text{Be}}^{3+}$ ion in $\text{J}$ is:

Which of the following reactions is NOT a redox reaction?

Match List I with List II:
| List I (Process) | List II (Conditions) |
| (A) Isothermal process | (I) No heat exchange |
| (B) Isochoric process | (II) Carried out at constant temperature |
| (C) Isobaric process | (III) Carried out at constant volume |
| (D) Adiabatic process | (IV) Carried out at constant pressure |

For the reaction $2\text{A}\rightleftharpoons \text{B}+\text{C}$, $K_c=4\times 10^{-3}$. At a given time, $[\text{A}]=[\text{B}]=[\text{C}]=2\times 10^{-3}\text{M}$. Which of the following is correct?

Match List I with List II regarding isomerism in coordination compounds:

In which of the following processes does entropy increase?(A) Liquid evaporating to vapor.(B) Lowering the temperature of a gas.(C) Decomposition of ${\text{NaHCO}}_3(s)$ to ${\text{Na}}_2{\text{CO}}_3(s)$, ${\text{CO}}_2(g)$, and ${\text{H}}_2\text{O}(g)$.(D) Dissociation of ${\text{Cl}}_2(g)$ into $2\text{Cl}(g)$.

Identify the correct reagents that would bring about the following transformation:

Match the following reactions with their reagents:

In which of the following equilibria are $K_p$ and $K_c$ NOT equal?

Which one of the following alcohols reacts instantaneously with Lucas reagent

Given below are two statements:Statement I: The boiling point of three isomeric pentanes follows the order: $n$ -pentane $>$ isopentane $>$ neopentane.Statement II: When branching increases, the molecule attains a spherical shape, reducing surface area and intermolecular forces, thereby lowering the boiling point.

Given below are two statements:Statement I: Aniline does not undergo Friedel-Crafts alkylation.Statement II: Aniline cannot be prepared through Gabriel phthalimide synthesis.

The $E^{\circ }$ value for the ${\text{Mn}}^{3+}/{\text{Mn}}^{2+}$ couple is more positive than ${\text{Cr}}^{3+}/{\text{Cr}}^{2+}$ or ${\text{Fe}}^{3+}/{\text{Fe}}^{2+}$ due to:

On heating, some solid substances change directly to vapor without passing through the liquid state. This technique is called:

Fehling’s solution ‘A’ is:

Match the following species with the nature of their bonds:

Intramolecular hydrogen bonding is present in:

The highest number of helium atoms is in:

Match the following reduction processes with the number of Faradays required:

Among Group 16 elements, which one does NOT show $-2$ oxidation state?

‘Spin-only’ magnetic moment is the same for which of the following ions?A. ${\text{Ti}}^{3+}$ B. ${\text{Cr}}^{2+}$ C. ${\text{Mn}}^{2+}$ D. ${\text{Fe}}^{2+}$ E. ${\text{Sc}}^{3+}$

A compound with a molecular formula of ${\text{C}}_6{\text{H}}_{14}$ has two tertiary carbons. Its IUPAC name is:

The Henry’s law constant ($K_H$) values of three gases (A, B, C) in water are $145$, $2\times 10^{-5}$, and $35\text{kbar}$, respectively. The solubility of these gases in water follows the order:

Which of the following compounds will undergo $S_{N}1$ reaction with the fastest rate?

The most stable carbocation among the following is:

Given below are two statements:Statement I: Both $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ and $[{\text{CoF}}_6{]}^{3-}$ complexes are octahedral but differ in their magnetic behavior.Statement II: $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ is diamagnetic, whereas $[{\text{CoF}}_6{]}^{3-}$ is paramagnetic.

$1\text{gram}$ of sodium hydroxide was treated with $25\text{mL}$ of $0.75\text{M HCl}$ solution. The mass of sodium hydroxide left unreacted is equal to:

Given below are two statements:Statement I: The boiling point of hydrides of Group 16 elements follows the order ${\text{H}}_2\text{O}>{\text{H}}_2\text{Te}>{\text{H}}_2\text{Se}>{\text{H}}_2\text{S}$.Statement II: ${\text{H}}_2\text{O}$ has the highest boiling point due to extensive hydrogen bonding.

Arrange the following elements in increasing order of first ionization enthalpy: $\text{Li, Be, B, C, N}$.

Activation energy of any chemical reaction can be calculated if one knows the value of:

Arrange the following elements in increasing order of electronegativity: $\text{N, O, F, C, Si}$.

Match List I with List II regarding quantum numbers:

Match the following molecules with their shapes:

According to Arrhenius equation, the plot of $\ln k$ vs $\frac{1}{T}$ yields a:

The work done during reversible isothermal expansion of one mole of hydrogen gas at $25^{\circ }\text{C}$ from a pressure of $20\text{atm}$ to $10\text{atm}$ is:(Given $R=2.0{\text{cal K}}^{-1}{\text{mol}}^{-1}$, $\ln 2\approx 0.693$)

Which of the following statements is correct regarding canonical forms of ${\text{CO}}_3^{2-}$ ion?

Major products A and B formed in the following reaction sequence are:

The pair of lanthanoid ions which are diamagnetic is:

A compound X contains $32\%$ of A, $20\%$ of B, and the remaining percentage of C. The empirical formula of X is:(Given atomic masses: A = $64$, B = $40$, C = $32$)

Given below are certain cations. Arrange them in increasing group number (Qualitative Analysis Group I to VI):A. ${\text{Al}}^{3+}$ B. ${\text{Cu}}^{2+}$ C. ${\text{Ba}}^{2+}$ D. ${\text{Co}}^{2+}$ E. ${\text{Mg}}^{2+}$

Consider the following reaction in a sealed vessel at equilibrium with concentrations: $[{\text{N}}_2]=3.0\times 10^{-3}\text{M}$, $[{\text{O}}_2]=4.2\times 10^{-3}\text{M}$, and $[\text{NO}]=2.8\times 10^{-3}\text{M}$.$2\text{NO}(g)\rightleftharpoons {\text{N}}_2(g)+{\text{O}}_2(g)$ If $0.1{\text{mol L}}^{-1}$ of $\text{NO}$ is taken in a closed vessel, what will be the degree of dissociation ($\alpha$) of $\text{NO}(g)$ at equilibrium?

The rate of a reaction quadruples when temperature changes from $27^{\circ }\text{C}$ to $57^{\circ }\text{C}$. Calculate the energy of activation. (Given $R=8.314\text{J/mol K}$)

During the preparation of Mohr’s salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of ${\text{Fe}}^{2+}$?

Identify the major product C formed in the following reaction sequence:${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2\text{I}\stackrel{\text{NaCN}}{\to }A\stackrel{\text{Partial Hydrolysis}}{\to }B\stackrel{{\text{NaOH, Br}}_2}{\to }C$

Mass of copper deposited by passing $9.6487\text{A}$ of current through copper sulfate solution for $100\text{seconds}$ is:(Given: Molar mass of $\text{Cu}=63\text{g/mol}$, $1F=96487\text{C}$)

Oxidation of cyclohexene with hot acidic ${\text{KMnO}}_4$ solution gives:

Given statements:Statement I: $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ is homoleptic, while $[{\text{Co(NH}}_3{\text{)}}_4{\text{Cl}}_2{]}^{+}$ is heteroleptic.Statement II: $[{\text{Co(NH}}_3{\text{)}}_6{]}^{3+}$ has one type of ligand, whereas $[{\text{Co(NH}}_3{\text{)}}_4{\text{Cl}}_2{]}^{+}$ has more than one type.

The plot of osmotic pressure ($\pi$) vs concentration ($C$ in ${\text{mol L}}^{-1}$) for a solution gives a straight line with slope $25.73{\text{L bar mol}}^{-1}$. The temperature at which the measurement is done is:(Use $R=0.083{\text{L bar mol}}^{-1}{\text{K}}^{-1}$)

Consider the reaction sequences:$3\text{ROH}+{\text{PCl}}_3\to 3\text{RCl}+A$$\text{ROH}+{\text{PCl}}_5\to \text{RCl}+\text{HCl}+B$ What are A and B?

Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin:

Lecithin, a small molecular weight organic compound found in living tissues, is an example of:

Match List I with List II:

Identify the set of correct statements:A. The flowers of Vallisneria are colourful and produce nectar.B. The flowers of water lily are not pollinated by water.C. In most water-pollinated species, the pollen grains are protected from wetting.D. Pollen grains of some hydrophytes are long and ribbon-like.E. In some hydrophytes, the pollen grains are carried passively inside water.

The list of endangered species was released by:

What is the fate of a piece of DNA carrying only the gene of interest which is transferred into an alien organism?A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism.B. It may get integrated into the genome of the recipient.C. It may multiply and be inherited along with the host DNA.D. The alien piece of DNA is not an integral part of the chromosome.E. It shows the ability to replicate.

Which of the following are required for the dark reaction of photosynthesis?A. LightB. ChlorophyllC. ${\text{CO}}_2$ D. ATPE. NADPH

The type of conservation in which the threatened species are taken out from their natural habitat and placed in a special setting where they can be protected and given special care is called:

Given

A transcription unit in DNA is defined primarily by three regions in DNA and these are with respect to upstream and downstream ends:

In the stomatal apparatus, which component has thin outer walls and highly thickened inner walls?

Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of:

Identify the type of flowers based on the position of calyx, corolla and androecium with respect to the ovary. If the thalamus is shaped like a cup and the ovary is situated at the bottom, while other floral parts are at the rim, it is:

Which of the following is an example of an actinomorphic flower?

Which one of the following is NOT a criterion for classification of fungi?

The equation of Verhulst-Pearl logistic growth is $\frac{dN}{dt}=rN\left[\frac{K-N}{K}\right]$. From this equation, $K$ indicates:

Which one of the following CANNOT be explained on the basis of Mendel’s Law of Dominance?

Match List I with List II:

Inhibition of succinic dehydrogenase enzyme by malonate is a classical example of:

Formation of interfascicular cambium from fully developed parenchyma cells is an example of:

A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

In a plant, black seed color ($BB/Bb$) is dominant over white seed color ($bb$). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?

Match List I with List II:

How many molecules of $\text{ATP}$ and $\text{NADPH}$ are required for every molecule of ${\text{CO}}_2$ fixed in the Calvin cycle?

The capacity to generate a whole plant from any cell of the plant is called:

Tropical regions show greatest level of species richness because:A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.B. Tropical environments are more seasonal.C. More solar energy is available in tropics.D. Constant environments promote niche specialization.E. Tropical environments are constant and predictable.

Match List I with List II:

Which part of the embryo in a seed is destined to form the root when the seed germinates?

Spindle fibers attach to kinetochores of chromosomes during:

Given

Given

These are regarded as major causes of biodiversity loss:A. OverexploitationB. Co-extinctionC. MutationD. Habitat loss and fragmentationE. Migration

The lactose present in the growth medium of bacteria is transported to the cell by the action of:

Bulliform cells are responsible for:

The cofactor of the enzyme carboxypeptidase is:

Read the following statements and choose the set of correct statements regarding Phaeophyceae:A. Asexual reproduction occurs usually by biflagellate zoospores.B. Sexual reproduction is by oogamous method only.C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

Match List I with List II:

Given

The DNA present in chloroplast is:

In an ecosystem, if the Net Primary Productivity (NPP) of the first trophic level is $100x\text{kcal}{\text{m}}^{-2}{\text{yr}}^{-1}$, what would be the NPP of the third trophic level, assuming $10\%$ transfer?

Which of the following are fused in somatic hybridization involving two varieties of plants?

Match List I with List II:

Match List I with List II:

Match List I with List II

Identify the correct description regarding a plant showing a compact inflorescence with flowers having well-exposed stamens and light, non-sticky pollen:

Match List I with List II:

Identify the step in the tricarboxylic acid cycle that does not involve oxidation of the substrate:

Spraying sugarcane crops with which plant growth regulator increases the length of stems, thereby enhancing yield?

Match List I with List II:

Which of the following statements is correct regarding the process of replication in E. coli?

Match List I with List II: