Re NEET 2026: 20 Questions That Could Make or Break Your Rank

Re-NEET 2026 Rank-Influencing Questions: Subject-Wise Distribution

Physics contributed the highest number of calculation-based questions, with Biology having NCERT-based conceptual problems that required careful reading. Chemistry, on the other hand, had a mix of reaction-based and conceptual questions that tested understanding rather than memorisation.

Re-NEET 2026: 20 Questions That Could Influence Your Final Rank

The following questions are the ones which stood out in the Re-NEET 2026 question paper because of their unique nature. Not only did these tested conceptual understanding and application of knowledge, but they also evaluated the candidates based on their basic interpretation of the questions.

Ques:1 A protein undergoes reversible thermal denaturation from its initial state $N$ to the denatured state $D$ according to:

$N \rightleftharpoons D$

At $60^\circ\text{C}$, the concentrations of both $N$ and $D$ are equal at equilibrium, and the standard enthalpy change of denaturation is $666\ \text{kJ mol}^{-1}$.

The standard entropy change $(\Delta S^\circ$ in $\text{kJ K}^{-1}\text{mol}^{-1})$ of the protein upon denaturation at $60^\circ\text{C}$ is closest to:

1. $2.0$

2. $2000.0$

3. $333.0$

4. $11.1$

Ques:2 The complex which has facial (fac) and meridional (mer) isomers is:

(Given: $\text{py} =$ pyridine and $\text{en} = \text{H}_2\text{N}-\text{CH}_2-\text{CH}_2-\text{NH}_2$)

1. $[\text{Cr}(\text{py})_3\text{Cl}_3]$

2. $[\text{Cr}(\text{H}_2\text{O})_6]^{3+}$

3. $[\text{Co}(\text{NH}_3)_4(\text{H}_2\text{O})_2]^{3+}$

4. $[\text{Ni}(\text{en})_2(\text{H}_2\text{O})_2]^{2+}$

Ques: 3 For a salt $XY$, which is a strong electrolyte, the plot of $\Lambda_m$ versus $\sqrt{c}$ has a slope of

$-90.0\ \text{S cm}^2\text{ mol}^{-3/2}\text{ L}^{1/2}$

at $298\ \text{K}$.

At $0.01\ \text{M}$ concentration of $XY$, the value of $\Lambda_m$ is

$145.0\ \text{S cm}^2\text{ mol}^{-1}$.

The limiting molar conductivity of ion $Y^{-}$ $\left(\lambda^{0}_{Y^-}\right)$ at $298\ \text{K}$ will be:

Given:

$\lambda^{0}_{X^+} = 74.0\ \text{S cm}^2\text{ mol}^{-1}$

1. $80.0$

2. $100.0$

3. $90.0$

4. $76.0$

Ques: 4 Given below are two statements:

Statement I:
trans-But-2-ene upon treatment with $Br_2$ in $CCl_4$ gives the following product.

Statement II:
cis-But-2-ene upon treatment with alkaline $KMnO_4$ gives the following product.

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

1. Both Statement I and Statement II are correct.

2. Both Statement I and Statement II are incorrect.

3. Statement I is correct but Statement II is incorrect.

4. Statement I is incorrect but Statement II is correct.

Ques:5 The highest occupied molecular orbital (HOMO) for $N_2$ is:

1. $\pi_{2p}$

2. $\sigma_{2p}$

3. $\pi^{*}_{2p}$

4. $\sigma^{*}_{2p}$

Ques: 6 Consider the following reaction and choose the correct option.

1. On treating compound $P$ with saturated $NaHCO_3$ solution, brisk effervescence is observed.

2. Compound $P$ can be prepared by treating benzene with anhydrous $AlCl_3$ and $CH_3COCl$.

3. On treatment with bromine water, compound $P$ gives a white precipitate.

4. Compound $P$ is obtained by the hydrogenation of benzoyl chloride with Pd on $BaSO_4$.

Ques:7 In the Geiger–Marsden experiment, the number of scattered $\alpha$-particles, $N(\theta)$, is plotted as a function of scattering angle $\theta$.

Which of the following options represents the correct plot?

1.

2.

3.

4.

Ques: 8 Two identical inductors are connected in two different configurations P and Q, where a time varying current $I(t)$ is flowing, as shown in the figure. The induced emf between points $a$ and $b$ for configuration P is $E_P$ and that for configuration Q is $E_Q$. The ratio $E_P/E_Q$ is :

[Neglect the effect of mutual inductance.]

(1) $2$

(2) $\dfrac{1}{4}$

(3) $\dfrac{1}{2}$

(4) $1$

Ques: 9 Water flows in a streamline motion through a horizontal pipe of circular cross-section as shown in the figure. The pressure difference of water between $P$ and $Q$ is $15\ \text{N m}^{-2}$. The area of cross-section at $P$ and $Q$ are $40\ \text{cm}^2$ and $20\ \text{cm}^2$, respectively. The rate of flow of water through the pipe, in $\text{cm}^3\text{s}^{-1}$, is :

[Take density of water $= 1000\ \text{kg m}^{-3}$]

(1) $400$

(2) $100$

(3) $200$

(4) $300$

Ques: 10 Which of the following measurements require ‘index correction’?

(1) Measurement of resistance of a wire using meter bridge

(2) Measurement of gravitational acceleration using simple pendulum

(3) Measurement of focal length of lenses using optical bench

(4) Measurement of speed of sound using resonance tube

Ques: 11 Consider a spring-mass simple harmonic oscillator in one dimension. The mass of the particle is $m$ kg and the spring constant is $k\ \text{N m}^{-1}$. At a given instant, the extension of the spring is $x$ meter and the speed of the particle is $v\ \text{m s}^{-1}$. On the $x-v$ plane, if the graph of $v$ as a function of $x$ is a circle, then the correct option is :

(1) $k = \dfrac{1}{m}$

(2) $k = m$

(3) $k = m^2$

(4) $k = \sqrt{m}$

Ques: 12 Consider a fixed uniformly charged insulating sphere with radius $R$ and total charge $+Q$. A point charge $-q$ ($q < Q$) with mass $m$ is released from rest at a distance of $3R$ from the centre of the charged sphere. When the point charge reaches the surface of the sphere, its speed is :

($\varepsilon_0$ is the permittivity of vacuum, neglect gravitational forces).

(1) $\sqrt{\dfrac{3Qq}{4\pi\varepsilon_0 mR}}$

(2) $\sqrt{\dfrac{2Qq}{3\pi\varepsilon_0 mR}}$

(3) $\sqrt{\dfrac{Qq}{3\pi\varepsilon_0 mR}}$

(4) $\sqrt{\dfrac{Qq}{4\pi\varepsilon_0 mR}}$

Ques: 13 A car travels on a circular racetrack of radius $50\ \text{m}$, which is banked at an angle $\theta$. If the car travels at a speed $10\ \text{m s}^{-1}$, then the wear and tear on its tyres is minimum. Taking the acceleration due to gravity to be $10\ \text{m s}^{-2}$, the value of $\theta$ is :

(1) $\tan^{-1}!\left(\dfrac{1}{5}\right)$

(2) $\tan^{-1}!\left(\dfrac{2}{5}\right)$

(3) $\tan^{-1}!\left(\dfrac{\sqrt{3}}{2}\right)$

(4) $\tan^{-1}!\left(2\sqrt{3}\right)$

Ques: 14 Bob $B$ of mass $m$ at rest is hanging vertically from the ceiling via a massless string of length $10\ \text{m}$, as shown in the figure. Point mass $A$ of mass $m$ travelling horizontally with speed $10\ \text{m s}^{-1}$ hits bob $B$ elastically. The bob $B$ rises $h$ meter after the collision. Taking the acceleration due to gravity $g = 10\ \text{m s}^{-2}$ and neglecting the size of bob, the value of $h$ is :

(1) $8$

(2) $7$

(3) $5$

(4) $2.5$

Ques: 15 Which of the following statements about lac-operon is correct?

(1) Gene $i$ is constitutively expressed

(2) Lactose activates repressor to bind to the operator

(3) Genes $i,\ z,\ y$ and $a$ share single common promoter

(4) Galactose can act as an inducer of lac operon

Ques: 16 Which of the following statements regarding photorespiration are correct?

(a) Do not occur in C3 plants

(b) $CO_2$ is consumed and $O_2$ is generated

(c) Phosphoglycolate is formed

(d) No synthesis of ATP and NADPH

Choose the correct answer from the options given below :

(1) (a) and (d) only

(2) (c) and (d) only

(3) (b) and (d) only

(4) (a) and (b) only

Ques: 17 Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.

(1) Absorption spectra of chlorophyll $a$ and $b$ $\rightarrow$ production of glucose $\rightarrow$ release of oxygen $\rightarrow$ role of air

(2) Role of air $\rightarrow$ release of oxygen $\rightarrow$ production of glucose $\rightarrow$ absorption spectra of chlorophyll $a$ and $b$

(3) Release of oxygen $\rightarrow$ production of glucose $\rightarrow$ absorption spectra of chlorophyll $a$ and $b$ $\rightarrow$ role of air

(4) Production of glucose $\rightarrow$ role of air $\rightarrow$ release of oxygen $\rightarrow$ absorption spectra of chlorophyll $a$ and $b$

Ques: 18 Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans?

(1) Femur-tibia-patella-tarsal

(2) Patella-femur-tibia-tarsal

(3) Femur-patella-tibia-tarsal

(4) Femur-tarsal-patella-tibia

Ques: 19 Which of the following are characteristics of prokaryotic cells?

(a) Ribosomes are made of 50S and 30S subunits

(b) They can have plasmids

(c) They contain mesosome

(d) They have peroxisomes

Choose the correct answer from the options given below :

(1) (b) and (c) only

(2) (a) and (c) only

(3) (a), (c) and (d) only

(4) (a), (b) and (c) only

Ques: 20 Given below are two statements :

Statement I: The class name Reptilia refers to creeping or crawling mode of locomotion.

Statement II: All organisms belonging to Reptilia have three chambered heart.

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

(1) Both Statement I and Statement II are correct

(2) Both Statement I and Statement II are incorrect

(3) Statement I is correct but Statement II is incorrect

(4) Statement I is incorrect but Statement II is correct

What Made These Questions Rank Deciders?

According to the Re-NEET 2026 difficulty level analysis, the paper was largely NCERT-based but included several questions that tested conceptual clarity and application of knowledge. These rank-defining questions required students to go beyond direct recall and apply concepts accurately under exam pressure.

Conceptual Understanding

Tested the ability to apply concepts rather than memorised facts.

NCERT Interpretation

Required careful reading of NCERT-based statements and facts.

Multi-Concept Application

Combined concepts from different topics in a single question.

Calculation Accuracy

Rewarded students who avoided calculation and unit-conversion errors.

Time Management

Demanded extra time and attention, making question selection important.

Common Mistakes Observed in Re-NEET 2026

Here are some of the most common mistakes made by the majority of candidates in Re-NEET 2026 that may have affected their overall performance and accuracy.

Physics

• Spending too much time on lengthy numerical questions.

• Making mistakes in unit conversions and calculations.

• Misinterpreting graphs, diagrams, and data-based questions.

Chemistry

• Getting confused in organic reaction mechanisms.

• Making errors in stereochemistry-related concepts.

• Losing marks in calculation-based numerical problems.

Biology

• Missing important NCERT facts.

• Interpreting statement-based questions incorrectly

• Getting confused between closely related biological concepts and terms.