List of top Questions asked in AIIMS

$40\, ml$ of $0.1\, M$ ammonia solution is mixed with $20 \,ml$ of $0.1\, M\, HCl$. What is the $pH$ of the mixture? $\left( p K_{b}\right.$ of ammonia solution is $\left.4.74\right)$
"Ordines Anomali" of Bentham and Hooker includes
Nitrobenzene on treatment with zinc dust and aqueous ammonium chloride gives
Methyl- $\alpha-D$-glucoside and methyl $-\beta-D$-glucoside are
Which of the following compounds has the highest boiling point?
What is common between chloroplasts, chromoplasts and leucoplasts ?
The moment of inertia of a rod about an axis through its centre and perpendicular to it is $\frac{1}{12} ML ^{2}$ (where $M$ is the mass and $L$, the length of the rod). The rod is bent in the middle so that the two halves make an angle of $60^{\circ}$. The moment of inertia of the bent rod about the same axis would be :
The incorrect statement among the following is
The energy gaps $(E_g)$ between valence band and conduction band for diamond, silicon and germanium are in the order
The circuit given below represents which of logic operations?
In $[Ag(CN)_2]^-$ , the number of $\pi$ bonds is
Given below is a circuit diagram of an $AM$ demodulator.
For good demodulation of $AM$ signal of carrier frequency $f$, the value of $R C$ should be :
For a spontaneous process the correct statement is
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out,
By sucking through a straw, a student can reduce the pressure in his lungs to $750\, mm$ of $Hg$ (density $= 13.6\, g/cm^3$ ). Using the straw, he can drink water from a glass upto a maximum depth of
Avena curvature test is a bioassay for examining the activity of
Water in liquid state is more stable than ice at room temperature. Water in liquid form has higher entropy than ice.
In the iodometric titration starch is used as an indicator. Starch is a polysaccharide.
In optical fibre, the diameter of the core is kept small. This smaller diameter of the core ensures that the fibre should have incident angle more than the critical angle required for total internal reflection.
In angiosperms the conduction of water is more efficient because their xylem has vessels. Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondria.
Graphite is an example of tetragonal crystal system. For a tetragonal system, $a=b \neq c, \alpha=\beta$ $=90^{\circ}, \gamma=120^{\circ}$
Cobalt-$60$ is useful in cancer therapy Cobalt-$60$ is a source of $\gamma$-radiations capable of killing cancerous cells.
A thin stainless steel needle can lay floating on a still water surface. Any object floats when the buoyancy force balances the weight of the object.
Among the following L-serine is
In refraction, light waves are bent on passing from one medium to the second medium, because, in the second medium: