List of top Questions asked in NEET (UG)- 2019

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

For the second period elements the correct increasing order of first ionisation enthalpy is :

The oxidation state of Cr in CrO₆ is :

Expressed Sequence Tags (ESTs) refers to

In the dicot root the vascular cambium originates from :-

Select the correct option.

How does steroid hormone influence the cellular activities?

Match Column - I with Column - II.

Choose the correct answer from the options given below :

Purines found both in DNA and RNA are ;

All the components of the nodal tissue are autoexcitable. Why does the SA node act as the normal pacemakar?

A mass falls from a height 'h' and its time of fall $'l'$ is recorded in terms of time period T of a simple pendulum. On the surface of earth it is found that I = 2T. The entire set up is taken on the surface of another planet whose mass is half of that of earth and radius the same. Same experiment is repeated and corresponding times noted as t' and T'.

The distance covered by a particle undergoing SHM in one time period is (amplitude = A) :

Both, autogamy and geitonogamy are prevented in

Variations caused by mutation, as proposed by Hugo de Vries, are:

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

A double convex lens has focal length 25 cm. The radius of curvature of one of the surfaces is double of the other. Find the radii if the refractive index of the material of the lens is 1.5 :

An object flying in air with velocity $\left(20\hat{i} + 25\hat{j} - 12\hat{k}\right)$ suddenly breaks in two pieces whose masses are in the ratio $1 : 5$. The smaller mass flies off with a velocity $\left(100\hat{i} + 35\hat{j} + 8\hat{k}\right)$. The velocity of the larger piece will be :

For an ideal solution, the correct option is :

An object kept in a large room having air temperature of 25°C takes 12 minutes to cool from 80° to 70°C. The time taken to cool for the same object from 70°C to 60°C would be nearly :

A particle starting from rest, moves in a circle of radius 'r'. It attains a velocity of V0 m/s in the $n^{th}$ round. Its angular acceleration will be :-

A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is :

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in

The mixture that forms maximum boiling azeotrope 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

Which of the following statements is correct?