List of top Questions asked in NEET (UG)

In a growing population of a country,
Nissl bodies are mainly composed of
The bond dissociation energies of $X_2 , Y_2$ and $XY $ are in the ratio of $1 : 0.5 :1. \Delta H$ for the formation of $XY$ is - $200\, kJ\, mol^{-1}$. The bond dissociation energy of $X_2$ will be
The correct order of steps in Polymerase Chain Reaction $(PCR)$ is
The magnetic potential energy stored in a certain inductor is $25 \,mJ,$ when the current in the inductor is $60\, mA$ This inductor is of inductance
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other ?
A bar AB of weight W rests like a ladder with upper end A against a smooth vertical wall and the lower end B on a rough horizontal plane. If the bar is just on the point of sliding, then the reaction at A is equal to (given that $\mu$ is coefficient of friction) :
For a radioactive material, half-life is $10$ minutes. If initially there are $600$ number of nuclei, the time taken (in minutes) for. the disintegration of $450$ nuclei is
At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth�s atmosphere ? (Given: Mass of oxygen molecule $(m) = 2.76 \times 10^{-26} kg $ Boltzmann�s constant $k_B = 1.38 \times 10^{-23} J \, K^{-1}$)
The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is
Which of the following oxides is most acidic in nature ?
Which of the following carbocations is expected to be most stable ?
Which of the following flower only once in its life-time ?
The refractive index of the material of a prism is √2 and the angle of the prism is 30°. One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is
A carbon resistor of (47 ± 4.7) kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be
A pendulum is hung from the roof of a sufficiently high building and is moving freely to and fro like a simple harmonic oscillator. The acceleration of the bob of the pendulum is 20 m/s2 at a distance of 5 m from the mean position. The time period of oscillation is
Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by \(\Delta l\) on applying a force F, how much force is needed to stretch the second wire by the same amount ?
Which of the following carbocations is expected to be most stable ?
Secondary xylem and phloem in dicot stem are produced by
Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes ?
The Golgi complex participates in
Double fertilization is
In which of the following forms is iron absorbed by plants ?
Which of the following hormones can play a significant role in osteoporosis ?
Conversion of milk to curd improves its nutritional value by increasing the amount of