List of top Questions asked in NEET (UG)

In which case change in entropy is negative ?
In which of the following devices, the eddy current effect is not used ?
Ionized hydrogen atoms and $\alpha$-particles with same momenta enters perpendicular to a constant magnetic field. B. The ratio of their radii of their paths $r_H : r_\alpha$ will be :
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout, the year to increase yield ?
Purines found both in DNA and RNA are ;
The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in
The circuit diagram shown here corresponds to the logic gate,
The artificial sweetner stable at cooking temperature and does not provide calories is :
The concept of "Omnis cellula-e cellula" regarding cell division was first proposed by :
The main difference between active and passive transport across cell membrane is :
The method used to remove temporary hardness of water is:
The mixture that forms maximum boiling azeotrope is :
The molar solubility of CaF$_2$ (K$_{sp}$ = 5.3 × 10$^{-11}$) in 0.1 M solution of NaF will be
The non-essential amino acid among the following is:
The number of sigma ($\sigma$)and pi ($\pi$) bonds in pent-2-en-4-yne is :
The oxidation state of Cr in CrO6 is :
The pH of 0.01 M NaOH (aq) solution will be
The polymer that is used as a substitute for wool in making commercial fibres is :
The two antibiotic resistance genes on vector pBR322 are for
The value of $\gamma\left(=\frac{C_{p}}{C_{y}}\right)$ , for hydrogen, helium and another ideal diatomic gas $X$ (whose molecules are not rigid but have an additional vibrational mode), are respectively equal to :
The volume occupied by 1.8 g of water vapour at 374 °C and 1 bar pressure will be :- [Use R = 0.083 bar L $K^{-1}mol^{-1}$]
Two metal spheres, one of radius $R$ and the other of radius $2R$ respectively have the same surface charge density $\sigma$. They are brought in contact and separated. What will be the new surface charge densities on them ?
Two parallel infinite line charges with linear charge densities $+\lambda \, C/m$ and $-\lambda \, C/m$ are placed at a distance of 2R in free space. What is the electric field mid-way between the two line charges ?
Two point charges $A$ and $B$, having charges $+ Q$ and $- Q$ respectively, are placed at certain distance apart and force acting between them is $F$. If $25\%$ charge of $A$ is transferred to $B$. then force between the charges become
Two similar thin $equi-convex$ lenses, of focal length $f$ each, are kept coaxially in contact with each other such that the focal length of the combination is $F_1$. When the space between the two lenses is filled with glycerin (which has the same refractive index $(p = 1.5)$ as that of glass) then the equivalent focal length is $F_2$. The ratio $F_1$ : $F_2$ will be :