List of top Questions asked in AIIMS- 2004

Which one feature is common to leech, cockroach and scorpion?
What is the first step in the Southern Blot technique?
$v_{rms} , v_{av}$ and $v_{mp}$ are root mean square, average and most probable speeds of molecules of a gas obeying Maxwellian velocity distribution. Which of the following statements is correct?
The total number of nitrogenous bases in human genome is estimated to be about
The pollen tube usually enters the embryo sac
The magnetic field due to a straight conductor of uniform cross-section of radius a and carrying a steady current is represented by
The liquefied metal expanding on solidification is :
The geometrical isomerism is shown by
The element which forms oxides in all oxidation states $+1$ to $+5$ is
The dipole moment is the highest for
The crystal system of a compound with unit cell dimensions $a = 0.387\, nm$, $b = 0.387\, nm$ and $c = 0.504 \,nm$ and $\alpha = \beta = 90^{\circ}$ and $\gamma$ = $120^{\circ}$ is
The compound having only primary hydrogen atoms is
The average osmotic pressure of human blood is $7.8$ bar at $37^{\circ}\, C$. What is the concentration of an aqueous $NaCl$ solution that could be used in the blood stream?
How much energy is released when 6 moles of octane is burnt in air ? Given $\Delta H_{f}{ }^{\circ}$ for $CO _{2}(g), H _{2} O (g)$ and $C _{8} H _{18}(l)$ respectively are $-490,-240$ and $+160\, J / mol :$
Coconut tree is distributed in coastal areas over a large part of the world. Coconut fruit can float and get dispersed over thousands of kilometers before losing viability
The $pK_a$ of acetic acid is lower than that of phenol. Phenoxide ion is more resonance stabilised.
The driver in a vehicle moving with a constant speed on a straight road is in a non-inertial frame of reference. A reference frame in which Newton?? laws of motion are applicable is non-inertial.
Smaller drops of liquid resist deforming forces better than the larger drops. Excess pressure inside a drop is directly proportional to its surface area.
In $He-Ne$ laser, population inversion takes place between energy levels of neon atoms. Helium atoms have a meta - stable energy level.
$HClO_4$ is a stronger acid than $HClO_3$. Oxidation state of chlorine in $HClO_4$ is $+7$ and in $HClO_3$ is $+5$.
Deficiency of sulphur causes chlorosis in plants. Sulphur is a constituent of chlorophyll, proteins and nucleic acids.
The great barrier reef along the east coast of Australia can be categorised as
Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy gave birth to children with
Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear lobes as opposed to the free ones. The squares represent the male individuals and circles the female individuals. Which one of the following conclusions drawn is correct ?
From evolutionary point of view, human gestation period is believed to be shortening. One major evolutionary trend in humans has been the larger head undergoing relatively faster growth rate in the foetal stage.