NEET-UG 2024 Question Paper

Match List I with List II. Choose the correct answer from the options given below

The Henry’s law constant (K_H) values of three gases (A,B,C) in water are 145, 2×10⁻⁵ and 35 kbar, respectively. The solubility of these gases in water follows the order:

Statement I: The boiling points of hydrides of Group 16 elements follow the order H₂O > H₂Te > H₂Se > H₂S

Statement II: On the basis of molecular mass, H₂O is expected to have a lower boiling point than the other members of the group, but due to the presence of extensive H-bonding in H₂O, it has a higher boiling point.

In the light of the above statements, choose the correct answer from the options given below:

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 shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.

Statement II: Aniline cannot be prepared through Gabriel synthesis.

In the light of the above statements,

choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

In which of the following processes entropy increases?

A. A liquid evaporates to vapour.

B. Temperature of a crystalline solid lowered from 130 K to 0 K.

C. 2 NaHCO₃(s) → Na₂CO₃(s) + CO₂(g) + H₂O(g)

D. Cl₂(g) → 2Cl(g)

Choose the correct answer from the options given below:

Which reaction is NOT a redox reaction?

Match List I with List II. Choose the correct answer from the options given below:

‘Spin only’ magnetic moment is same for which of the following ions?

A. Ti³⁺

B. Cr²⁺

C. Mn²⁺

D. Fe²⁺

E. Sc³⁺

Choose the most appropriate answer from the options given below:

The highest number of helium atoms is in

The reagents with which glucose does NOT react to give the corresponding test/products are

A. Tollen’s reagent

B. Schiff’s reagent

C. HCN

D. NH₂OH

E. NaHSO₃

Choose the correct options from the given below:

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

A compound with a molecular formula of C₆H₁₄​ has two tertiary carbons. Its IUPAC name is:

Match List I with List II. Choose the correct answer from the options given below:

The pair of lanthanoid ions which are diamagnetic is

Statement I: [Co(NH₃)₆]³⁺ is a homoleptic complex whereas [Co(NH₃)₄Cl₂]⁺ is a heteroleptic complex. Statement II: Complex [Co(NH₃)₆]³⁺ has only one kind of ligands but [Co(NH₃)₄Cl₂]⁺ has more than one kind of ligands. In the light of the above statements, choose the correct answer from the options given below.

Mass in grams of copper deposited by passing 9.6487 A current through a voltameter containing copper sulphate solution for 100 seconds is (Given : Molar mass of Cu : 63 g mol⁻¹, 1 F = 96487 C)

The products A and B obtained in the following reactions, respectively, are 3ROH + PCl₃ ​→RCl + A ROH + PCl₅ → RCl + HCl + B

The rate of a reaction quadruples when temperature changes from 27°C to 57°C. Calculate the energy of activation. Given: R=8.314 J K⁻¹ mol⁻¹, log4=0.6021

During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of Fe²⁺ ion?

Identify the correct answer.

Identify the major product C formed in the following reaction sequence:

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.

A. Al³⁺

B. Cu²⁺

C. Ba²⁺

D. Co²⁺

E. Mg²⁺

Choose the correct answer from the options given below.

Consider the following reaction in a sealed vessel at equilibrium with concentrations of N₂ = 3.0 × 10⁻³ M, O₂ = 4.2 × 10⁻³ M and NO = 2.8 × 10⁻³ M. 2NO(g) ⇌ N₂​(g) + O₂​(g) If 0.1 mol L⁻¹ of NO(g) is taken in a closed vessel, what will be the degree of dissociation (α) of NO(g) at equilibrium?

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

In a vernier callipers, (N+1) divisions of vernier scale coincide with N divisions of main scale. If 1 MSD represents 0.1 mm, the vernier constant (cm) is:

A logic circuit provides the output Y as per the following truth table:

The expression for the output Y is :

In a uniform magnetic field of 0.049 T, a magnetic needle performs 20 complete oscillations in 5 seconds as shown. The moment of inertia of the needle is 9.8 × 10⁻⁶ kg m². If the magnitude of magnetic moment of the needle is 1 × 10⁻⁵ A m², then the value of ' x' is:

A wire of length 'l' and resistance 100 Ω 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:

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

Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges.

Statement II: Atoms of each element are stable and emit their characteristic spectrum.

In the light of the above statements, choose the most appropriate answer from the options given below.

A bob is whirled in a horizontal plane by means of a string with an initial speed of ω rpm. If the tension in the string is T. If speed becomes 2ω while keeping the same radius, the tension in the string becomes:

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 μA is due to majority charge carriers.

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

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=hν.

B. The velocity of a photon is c.

C. The momentum of a photon, p= hν​/c

D. In a photon-electron collision, both total energy and total momentum are conserved.

E. Photon possesses positive charge.

Choose the correct answer from the options given below:

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

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

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

The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young’s modulus, respectively, are 8 × 10⁸ N m⁻² and 2 × 10¹¹ N m⁻², is:

In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions:

The mass of a planet is 1/10that of the Earth and its diameter is half that of the Earth. The acceleration due to gravity on that planet is:

Match List I with List II.Choose the correct answer from the options given below:

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

Match List I with List II. Choose the correct answer from the options given below:

Two bodies A and B of same mass undergo completely inelastic one-dimensional collision. The body A moves with velocity v₁ while body B is at rest before collision. The velocity of the system after collision is v₂​. The ratio v₁:v₂​ is:

In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are

If x = 5sin (πt +π/3) m represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are

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

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

Assertion A: The potential (V) at any axial point, at 2 m distance (r) from the centre of the dipole of dipole moment vector 𝐏⃗ of magnitude 4 × 10⁻⁶ Cm, is ±9 × 10³V.

(Take 1/4πε₀ = 9 × 10⁹ SI units)

Reason R: V = ± 2P/4πε₀r², where r is the distance of any axial point, situated at 2 m from the centre of the dipole. In the light of the above statements, choose the correct answer from the options given below:

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)?

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:

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

The following graph represents the T–V curves of an ideal gas (where T is the temperature and V the volume) at three pressures P₁, P₂ and P₃ compared with those of Charles’ law represented as dotted lines. Then the correct relation 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 x/2​ times its original time period. Then the value of x is:

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) from the options given below:

A metallic bar of Young’s modulus 0.5 × 10¹¹ N m⁻² and coefficient of linear thermal expansion 10⁻⁵°C⁻¹, length 1 m and area of cross-section 10⁻³ m² is heated from 0°C to 100°C without expansion or bending. The compressive force developed in it 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° with each other. The magnetic moment of this new magnet is :

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 from the options given below:

A force defined by F = αt² + βt acts on a particle at a given time t. The factor which is dimensionless, if α and β are constants, is:

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

Match List I with List II. Choose the correct answer from the options given below:

Statement I : Bt toxins are insect group specific and coded by a gene cry IAc.

Statement II : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut.

In the light of the above statements, choose the correct answer from the options given below:

Identify the set of correct statement: A. The flowers of Vallisneria are colourful and produce nectar.

B. The flowers of waterlily are not pollinated by water.

C. In most of 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.

Choose the correct answer from the options given below.

Match List I with List II. Choose the correct answer from the options given below:

The equation of Verhulst-Pearl logistic growth is dN/dt = rN[K-N/K]. From this equation, K indicates:

Statement I : Parenchyma is living but collenchyma is dead tissue.

Statement II : Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.

In the light of the above statements, choose the correct answer from the options given below:

These are regarded as major causes of biodiversity loss:

A. Over exploitation

B. Co-extinction

C. Mutation

D. Habitat loss and fragmentation

E. Migration

Choose the correct option:

What is the fate of a piece of DNA carrying only 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 chromosome.

E. It shows ability to replicate.

Choose the correct answer from the options given below:

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.

Choose the correct answer from the options given below.

Statement I: Chromosomes become gradually visible under light microscope during leptotene stage. Statement II: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.

In the light of the above statements,

choose the correct answer from the options given below:

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

Which of the following are required for the dark reaction of photosynthesis?

A. Light

B. Chlorophyll

C. CO₂ D. ATP

E. NADPH

Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Read the following statements and choose the set of correct statements: In the members of 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. Choose the correct answer from the options given below:

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m⁻² yr⁻¹), what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?

Match List I with List II. Choose the correct answer from the options given below:

Statement I: In C₃ plants, some O₂ binds to RuBisCO, hence CO₂ fixation is decreased

. Statement II: In C₄ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.

In the light of the above statements, choose the correct answer from the options given below:

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

Following are the stages of pathway for conduction of an action potential through the heart

A. AV bundle

B. Purkinje fibres

C. AV node

D. Bundle branches

E. SA node

Choose the correct sequence of pathway from the options given below

The flippers of the Penguins and Dolphins are the example of the

Given below are some stages of human evolution. Arrange them in correct sequence. (Past to Recent)

A. Homo habilis

B. Homo sapiens

C. Homo neanderthalensis

D. Homo erectus

Choose the correct sequence of human evolution from the options given below:

Following are the stages of cell division :

A. Gap 2 phase

B. Cytokinesis

C. Synthesisphase

D. Karyokinesis

E. Gap I phase

Choose the correct sequence of stages from the options given below:

Which of the following are Autoimmune disorders?

A. Myasthenia gravis

B. Rheumatoid arthritis

C. Gout

D. Muscular dystrophy

E. Systemic Lupus Erythematosus (SLE)

Choose the most appropriate answer from the options given below:

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : FSH acts upon ovarian follicles in female and Leydig cells in male.

Reason R : Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being.

In the light of the above statements, choose the correct answer from the options given below :

Match List I with List II. Choose the correct answer from the options given below:

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A : Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.

Reason R : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.

In the light of the above statements,

choose the most appropriate answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Consider the following statements :

A. Annelids are true coelomates

B. Poriferans are pseudocoelomates

C. Aschelminthes are acoelomates

D. Platyhelminthes are pseudocoelomates

Choose the correct answer from the options given below:

Statement I: In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.

Statement II: The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.

In the light of the above statements,

choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Statement I: The presence or absence of hymen is not a reliable indicator of virginity.

Statement II: The hymen is torn during the first coitus only.

In the light of the above above statements,

choose the correct answer from the options given below :

Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.

Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.

In the light of the above statements, choose the correct answer from the options given below :

The following are the statements about non-chordates:

A. Pharynx is perforated by gill slits.

B. Notochord is absent.

C. Central nervous system is dorsal.

D. Heart is dorsal if present.

E. Postanal tail is absent.

Choose the most appropriate answer from the options given below:

Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callosum. Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum.

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced. Statement II : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes. In the light of above statements,

choose the most appropriate answer from the options given below :

Rgarding catalytic cycle of an enzyme action, select the correct sequential steps :

A. Substrate enzyme complex formation.

B. Free enzyme ready to bind with another substrate.

C. Release of products.

D. Chemical bonds of the substrate broken.

E. Substrate binding to active site.

Choose the correct answer from the options given below:

Match List I with List II. Choose the correct answer from the options given below:

Statement I: Mitochondria and chloroplasts both double membranes bound organelles.

Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast.

In the light of the above statements, choose the m is appropriate answer from the options given below

The graph which shows the variation of (1/λ²) and its A kinetic energy, E is (where λ is de Broglie wavelength of a free particle):

The velocity (v) — time (t) plot of the motion of a body is shown below:

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

Choose the correct circuit which can achieve the bridge balance.

Intramolecular hydrogen bonding is present in

The compound that will undergo S_N1 reaction with the fastest rate is

Which one of the following alcoholreacts instantaneously with Lucas reagent?

The most stable carbocation among the following is :

Which plot of In k vs 1/T is consistent with Arrhenius equation?

For the given reaction:

'P' is

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

Identify the correct description about the given figure:

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in the human body:

Name of muscle/location

The following diagram shows restriction sites in E. coli cloning vector pBR322. Find the role of 'X' and 'Y' genes:

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis.

which one of the following factors will not affect the hardy - weinberg equilibrium?