List of top Questions asked in AIIMS- 2016

Unlike electric force and gravitational forces, nuclear force has limited range. Nuclear force do not obey inverse square law.

Chlorobenzene is more reactive than benzene towards the electrophilic substitution reaction. Resonance destabilises the carbocation.

In a 3.2 Kbp long piece of DNA, 820 adenine bases were found. What would be the number of cytosine bases?

The magnetic field at the centre O of the arc shown in the figure is

Time period of pendulum, on a satellite orbiting the earth, is

Sphagnum is slowly carbonised, compressed and fossilised over thousands of years to produce a dark spongy mass called peat. Peat helps to keep soil porous and it also improves water holding capacity of the soil.

Three identical charges are placed at the vertices of an equilateral triangle. The force experienced by each charge, (if k = 1/4$\pi\varepsilon_{0}$) is

Among the following, the achiral amino acid is

In water, value of magnetic field decreases. Water is a diamagnetic substance.

$K_p$ for the reaction $ {A {\rightleftharpoons} B}$ is 4. If initially only A is present then what will be the partial pressure of B after equilibrium ?

Select the correct statement

Most animals that live in deep oceanic waters are

Which of the following reactions does not take place? $ {BF3 + F^{-} ->BF4^{-}}$$\quad\quad\quad\quad\quad\quad\quad\quad\ldots\left(I\right)$ $ {BF3 + 3F^{-} ->BF6^{3-}}$$\quad\quad\quad\quad\quad\quad\quad\ldots\left(II\right)$ $ {AlF3 + 3F^{-} ->AlF6^{3-}}$$\quad\quad\quad\quad\quad\quad\ldots\left(III\right)$

Which of the following species is not aromatic?

Which of the following can be oxidised by $SO_2$ ?

Two elements $A$ and $B$ form compounds of formula $AB_2$ and $AB_4$. When dissolved in $20.0\, g$ of benzene $1.0 \,g$ of $AB_2$ lowers f. pt. by 2.3$^{\circ}$C whereas $1.0\, g$ of $AB_4$ lowers f. pt. by 1.3$^{\circ}$C. The $K_f$ for benzene is $5.1$. The atomic masses of $A$ and $B$ are

The two coherent sources with intensity ratio $\beta$ produce interference. The fringe visibility will be

The reaction, $C_6H_5ONa + CO_2 + H_2O \to C_6H_5OH + NaHCO_3$ suggests that

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9 : 1. The intensities of the used light sources are in ratio

The freezing point of a solution containing 0.2 g of acetic acid in 20.0 g benzene is lowered by 0.45 $^{\circ}$C. The degree of association of acetic acid in benzene is (Assume acetic acid dimerises in benzene and $K_f$ for benzene = $5.12\, K \,kg \,mol^{-1}$) $M_{observed}$ of acetic acid = 113.78

Tetradynamous condition is found in

Some of the steps of DNA fingerprinting are given below. Identify the correct sequence from the options given : A. Electrophoresis of DNA fragments B. Hybridisation with DNA probe C. Digestion of DNA by RENs D. Autoradiography E. Blotting of DNA fragments to nitrocellulose membrane

Oil used as frothing agent in froth floatation process is

Light wave enters from medium $1$ to medium $2$. Its velocity in $2^{nd}$ medium is double from $1^{st}$. For total internal reflection the angle of incidence must be greater than

If the sequence of bases in the coding strand of a double stranded $DNA$ is $5'\, GTTCGAGTC-3'$, the sequence of bases in its transcript will be