List of top Questions asked in AIIMS

Wavelength of a particular transition for $H\, atom$ is $400 \,nm$. What can be the wavelength of $He^+$ for the same transition?

Two separate bulbs contain gas A and gas B. The density of gas A is twice as that of B. The molecular mass of A is half as that of B. If temperature is constant, the ratio of the pressure of A and B is

The normality of 10% $H_2SO_4$ solution having density 1.1 g/cc is

The correct order of reactivity in S1 reaction for the following compounds is

The amphids are cuticular elevations on the ventrolateral lips of Ascaris. These are

Refer to the given figure of T.S. of penis. How will penile function be altered if the blood supply to the B is impaired?

$KMnO_4$ on reaction with KOH does not give

In van der Waals equation at constant temperature 300 K, if a = 1.4 atm L mol, V = 100 mL, n = 1 mole, then what is the pressure of the gas?

In the diagram $100 \,kg$ block is hanging from a pulley and force $F$ is applied on the string to keep the system in equilibrium. If the whole system is moving up with a constant velocity $v$, then tension at point $P$ in the string will be

In frog, mesorchium is a thin fold of membrane extending between

In acidic medium, which of the following becomes colourless?

Golgi apparatus is absent in

Glycosylation of proteins is done by

Gas in a cylinder is maintained at $10 \,atm$ pressure and $300\, K$ temperature. The cylinder will explode if pressure of gas goes beyond $15\, atm$. What is the maximum temperature to which gas can be heated?

F-centre is

Diagrams of hypogynous, perigynous and epigynous flowers are given below. Find out the option that correctly exemplifies A, B, C and D.

Developing spermatozoa receive nutrition from

Zone refining is based on the solubility of impurities in the molten state than in the solid state of the metal. Pure metal oxide is obtained in zone refining.

Water waves in a river are not polarized. Water waves are longitudinal as well as transverse in nature.

Transpiration occurs only when stomata are open. Transpiration occurs only through stomata.

Surface tension decreases with increases in temperature. On increasing temperature kinetic energy increases and intermolecular forces decreases..

$Si??i$ bonds are much stronger than $Si??$ bonds. Silicon forms double bonds with itself.

Respiratory pathway is an amphibolic pathway. In respiration, there is breakdown of many substances (catabolism) and synthesis of many substances (anabolism) by respiratory intermediates.

$Pb_3O_4$ reacts with $HNO_3$ and forms $PbO_2$. Lead is stable in $+4$ oxidation state.

Oxidation state of hydrogen is +1 in $H_2O$ while -1 in $CaH_2$. $CaH_2$ is a metal hydride and for hydrides, hydrogen is assigned the oxidation number of -1.