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Physics · PYQ NEET UG 2025
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6627 questions
Biology · PYQ NEET UG 2016(1)
Select the INCORRECT statement:
Read answer →Current Affairs · 2026-07-31
Where is the headquarters of the National Commodity and Derivatives Exchange Limited (NCDEX) located?
Read answer →Current Affairs · 2026-09-26
Which organization issued the operational guidelines for the 'NPS Swasthya' health-linked pension scheme in September 2026?
Read answer →Chemistry · THERMODYNAMICS
For the reaction \( 4\text{Fe}(s) + 3\text{O}_2(g) \rightarrow 2\text{Fe}_2\text{O}_3(s) \) at \( 298\text{ K} \), \( \Delta_r H^\circ = -1648\text{ kJ mol}^{-1} \) and \( \Delta_r S^\circ = -549.4\text{ J K}^{-1}\text{mol}^{-1} \). What is the total entropy change \( \Delta S_{\text{total}} \)?
Read answer →Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
In an L-shaped uniform lamina formed by three identical squares of side length \( b = 2\text{ m} \) as oriented in Fig. 6.11 (with bottom-left square at origin having vertices from \( (0,0) \) to \( (2,2) \)), the coordinate of the centre of mass is:
Read answer →Physics · MOTION IN A STRAIGHT LINE
A particle moves along a straight line such that its position \( x \) at time \( t \) is given by \( x = t^3 - 6t^2 + 9t + 5 \). At what time(s) is the velocity of the particle zero?
Read answer →Biology · HUMAN REPRODUCTION
In the human female reproductive system, what constitutes the 'birth canal'?
Read answer →Physics · MOTION IN A PLANE
The resultant of two vectors \( \mathbf{P} \) and \( \mathbf{Q} \) is perpendicular to \( \mathbf{P} \). If the magnitude of the resultant is equal to half of the magnitude of \( \mathbf{Q} \), then the angle between \( \mathbf{P} \) and \( \mathbf{Q} \) is:
Read answer →Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
A particle moves with uniform speed \( v \) along a circle of radius \( R \) centered at the origin in the \( xy \)-plane. The angular momentum of the particle about a point \( P(2R, 0) \) on the \( x \)-axis varies between minimum and maximum values \( L_{\min} \) and \( L_{\max} \). The ratio \( \frac{L_{\max}}{L_{\min}} \) is:
Read answer →Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE
Consider the following statements regarding hybridization and orbital characteristics: (A) Hybrid orbitals are always equivalent in energy and shape. (B) Promotion of an electron is an essential condition prior to hybridization. (C) A \( \pi \) bond is stronger than a \( \sigma \) bond because of greater extent of orbital overlap. (D) Only half-filled orbitals of valence shell take part in hybridization; fully filled orbitals can never participate. Which of the above statements is/are correct?
Read answer →Biology · PLANT KINGDOM
Mosses along with lichens play a major ecological role on bare rocks because:
Read answer →Biology · CELL CYCLE AND CELL DIVISION
A diploid parent cell has 20 bivalents during prophase I of meiosis. What will be the number of chromosomes in each of the four daughter cells formed at the end of meiosis II?
Read answer →Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
Consider a system of \( n \) particles where the position vector of each particle relative to the centre of mass is \( \mathbf{r}'_i \). The value of the vector sum \( \sum_{i=1}^n m_i \mathbf{r}'_i \) is always:
Read answer →Chemistry · Some Basic Concepts of Chemistry
Consider the following statements regarding the classification of matter: (A) Air is a homogeneous mixture. (B) Glucose contains carbon, hydrogen, and oxygen in a fixed ratio and is classified as a pure substance. (C) The components of a homogeneous mixture are visible distinctly with the unaided eye. (D) Pure substances can have variable composition depending on their preparation method. How many of the above statements are correct?
Read answer →Physics · PYQ NEET UG 2019(1)
The total energy of an electron in an atom in an orbit is \( -3.4\text{ eV} \). Its kinetic and potential energies are, respectively
Read answer →Physics · UNITS AND MEASUREMENT
According to the NCERT rounding-off rules, the numbers \( 3.745 \) and \( 3.735 \), when rounded off to three significant figures, become respectively:
Read answer →Chemistry · THERMODYNAMICS
2.0 moles of liquid water at \( 100^\circ\text{C} \) is completely converted to ice at \( 0^\circ\text{C} \) at 1 bar pressure. Given that the heat capacity of liquid water is \( 4.2\text{ J g}^{-1\,\circ}\text{C}^{-1} \) and the enthalpy of fusion of ice is \( 6.00\text{ kJ mol}^{-1} \), the total enthalpy change (\( \Delta H \)) for this process is:
Read answer →Physics · MOTION IN A STRAIGHT LINE
Match List-I with List-II for motion under gravity (ball thrown vertically upward with initial speed \( v_0 \)): List-I List-II A Time taken to reach peak height I \( v_0 \) B Maximum height reached above launch point II \( \frac{2 v_0}{g} \) C Total time of flight to return to launch level III \( \frac{v_0}{g} \) D Speed upon returning to launch level IV \( \frac{v_0^2}{2g} \) Choose the correct answer from the options given below:
Read answer →Current Affairs · 2026-08-17
Which regulatory body proposed a mandatory, colour-coded Credit Risk-o-Meter for debt securities in August 2026?
Read answer →Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS
Consider the following statements regarding seeds: Statement I: Albuminous seeds retain a part of the endosperm as it is not completely consumed during embryo development. Statement II: In non-albuminous seeds such as castor and maize, the endosperm is completely consumed during embryo development. In the light of the above statements, choose the correct answer:
Read answer →Current Affairs · 2026-09-21
What is the timeline generally required for reporting births, deaths, and stillbirths under the Registration of Births and Deaths Act?
Read answer →Chemistry · PYQ NEET UG 2025
For the reaction \( A(g) \rightleftharpoons 2B(g) \), the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500, at \( 1000\text{ K} \). [Given : \( R = 0.0831\text{ L atm mol}^{-1}\text{ K}^{-1} \)] \( K_p \) for the reaction at \( 1000\text{ K} \) is
Read answer →Biology · MICROBES IN HUMAN WELFARE
