List of top Questions asked in NEET (UG)

In which of the following coordination entities the magnitude of $\Delta_0$ (CFSE in octahedral field) will be maximum? (At. no. of Co = 27)
-The stability of carbanions in the following (i) $RC \equiv {C}^{\ominus}$ (iii) $R_2C = {CH}^{\ominus}$ (iv) $R_3C = {CH_2}^{\ominus}$ , is in the order of
A cell can be balanced against 110 cm and 100 cm of potentiometer wire, respectively with and without being short circuited through a resistance of $10\, \Omega.$ Its internal resistance is
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively
Bond dissociation enthalpy of ${H_2, Cl_2}$ and $HCl$ are $434, 242$ and ${431 \, kJmol^{- 1}}$ respectively. Enthalpy of formation of $HCl $ is
For the gas phase reaction, ${PCl_{5} (g) <=> PCl_{3} (g) + Cl_{2} (g)}$ which of the following conditions are correct ?
Which one of the following is an amine hormone?
How many stereoisomers does this molecule have? $CH_3CH = CHCH_2CHBrCH_3$
A particle shows distance - time curve as given in this figure. The maximum instantaneous velocity of the particle is around the point
An electric kettle takes 4 A current at 220 V. How much time will it take to boil 1 kg of water from temperature $20^\circ C ?$ The temperature of boiling water is $100^\circ C $
A current of 3 amp. flows through the $2\, \Omega$ resistor shown in the circuit. The power dissipated in the $5\, \Omega$ resistor is
The value of equilibrium constant of the reaction, $ HI(g) \rightleftharpoons \frac{1}{2} H_2 (g) + \frac{1}{2} I_2 (g)\, \, is\, \, 8.0 $ . The equilibrium constant of the reaction, $ H_2 (g) + I_2 (g) \rightleftharpoons 2HI(g) $ Will be
Consider the following four statements (1-4) about certain desert animals such as kangaroo rat (1) they have dark colour and high rate of reproduction and excrete solid urine (2) they do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs (3) they feed on dry seeds and do not require drinking water (4) they excrete very concentrated urine and do not use water to regulate body temperature. Which two of the above statements for such animals are true?
Volume occupied by one molecule of water $(density\, = 1 g\, cm^{-3} )$ is
Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin ?
Trichoderma harzianum has proved to be a useful microorganism for
Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
Which one of the following is not a characteristic of phylum Annelida?
Ascaris is characterized by
Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional forces are 10% of energy. How much power is generated by the turbine ? (g = 10 m/s$^2$)
A thin rod of length L and mass M is bent at its midpoint into two halves so that the angle between them is $90^\circ$. The moment of inertia of the bent rod about an axis passing through the bending point and perpendicular to the plane defined by the two halves of the rod is
A roller coaster is designed such that riders experience ''weightlessness'' as they go round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top of the hill is between
A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is

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A sequential expression of a set of human genes occurs when a steroid molecule binds to the:-