List of top Questions asked in NEET (UG)

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hep) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is :

Purines found both in DNA and RNA are ;

The non-essential amino acid among the following is:

The molar solubility of CaF$_2$ (K$_{sp}$ = 5.3 × 10$^{-11}$) in 0.1 M solution of NaF will be

The density of 2 M aqueous solution of NaOH is 1.28 g/cm$^3$. The molality of the solution is [Given that molecular mass of NaOH = 40 g mol$^{-1}$]

The pH of 0.01 M NaOH (aq) solution will be

Among the following, the narrow spectrum antibiotic is :

The oxidation state of Cr in CrO₆ is :

The most stable carbocation, among the following is :-

The displacement of a particle executing simple harmonic motion is given by $y =A_{0}+ A\, sin\,wt + B\, cos\,wt$ Then the amplitude of its oscillation is given by:

Among the following, the one that is not a green house gas is :

Xylem translocates:

The circuit diagram shown here corresponds to the logic gate,

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 artificial sweetner stable at cooking temperature and does not provide calories is :

The reading of an ideal voltmeter in the circuit shown is :

Assuming that the gravitational potential energy of an object at infinity is zero, the change in potential energy (final - initial) of an object of mass m, when taken to a height h from the surface of earth (of radius R), is given by,

A bar magnet placed in a uniform magnetic field making an angle $\theta$ with the field experiences a torque. If the angle made by the magnet with the field is doubled, the torque experienced by the magnet increases by $41.4\%$. The initial angle made by the magnet with the magnetic field is

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:

Angular width of the central maxima in the Fraunhofer diffraction for $\lambda$ = 6000 � is $\theta_{0}$. When the same slit is illuminated by another monochromatic light, the angular width decreases by 30%. The wavelength of this light is,

The alkane that gives only one mono-chloro product on chlorination with $Cl_2$ in presence of diffused sunlight is :

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

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:

Following table summarises the differences between a monocot root and a dicot root. Identify the incorrect differences and select the correct option.

The relations amongst the three elements earth's magnetic field, namely horizontal component H, vertical component V and dip d are, (B$_E$ = total magnetic field)