List of top Questions asked in AIIMS

Drosophila flies with $XXY$ genotype are females, but human beings with such genotype are abnormal males, it shows that
Pure line breed refers to
Chain transfer reagent is
The figure shows the path of a positively charged particle 1 through a rectangular region of uniform electric field as shown in the figure. What is the direction of electric field and the direction of deflection of particles 2, 3 and 4?
Ohm?? law is applicable for all conducting elements. Ohm?? law is a fundamental law.
The vapour pressure of pure benzene at a certain temperature is $0.850$ bar. A non-volatile, nonelectrolyte solid weighing $0.5\,g$ is added to $39.0\, g$ of benzene (molar mass 78 g/mol). The vapour pressure of the solution then is 0.845 bar. What is the molecular mass of the solid substance?
A large horizontal surface moves up and down in $S.H.M.$ with an amplitude of $1\, cm$. If a mass of $10\, kg$ (which is placed on the surface) is to remain continuously in contact with it, the maximum frequency of S.H.M. will be
In a cavity within a conductor, the electric field is zero. Charges in a conductor reside only at its surface.
: In the electrolysis of aqueous $ NaCl $ , $ Na $ is preferentially discharged at mercury cathode forming sodium amalgam. : It is due to the fact that hydrogen has a high over voltage at mercury cathode.
Which of the following statement is true?
The lactic acid shows the geometrical isomerism. Lactic acid has carbon-carbon double bond.
Mixture of $CH_3COOH$ and $CH_3COONH_4$ is an example of acidic buffer. Acidic buffer contains equimolar mixture of weak acid and its salt with weak base.
Plexiglass is a commercial name of
Rayon is
Propene on hydroboration and oxidation produces
"Omnis-cellula-e-cellula" was given by
In maize, hybrid vigour is exploited by
At the high pressure, Langmuir adsorption isotherm takes the form
Sound waves cannot travel in vacuum but light can travel in vacuum. Sound waves are longitudinal waves and they cannot be polarised but electromagnetic waves are transverse and they can be polarised.
: $7$-celled, $8$ nucleate and monosporic embryosac is called Polygonum type of embryo sac. : It was discovered by Hofmeister for the first time in Polygonum.
Wings of pigeon, mosquito and bat show
$XeF_6$ on complete hydrolysis produces
Zener diode acts as a/an
Which form of reproduction is correctly matched?
Which among the following is a rootless plant?