List of top Questions asked in AIIMS- 2007

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?
What is the dimensions of impedance ?
The phase difference between the instantaneous velocity and acceleration of a particle executing simple harmonic motion is
The element which is the most abundant in the earth crust is
The density of air is $0.001293\, g / cc$ at STP. Its vapour density is
The correct order of ease of dehydration of following is
The correct order of basic strength is
The coordination number in $hcp$ is
Supercritical $CO_{2}$ is used as
Photosynthetic Active Radiation $(PAR)$ has the following range of wavelengths
Mass spectrometric analysis of potassium and argon atoms in a Moon rock sample shows that the ratio of the number of (stable) ${ }^{40} Ar$ atoms present to the number of (radioactive) ${ }^{40} K$ atoms is $10.3$. Assume that all the argon atoms were produced by the decay of potassium atoms, with a half-life of $1.25 \times 10^{9} yr$. How old is the rock?
Litharge is chemically
In the change $ {[Cu(H2O)6]^2+ ->[HCl] }[CuC(H_2O)_5]^+$, the colour changes from
If $ AgI $ crystallizes in zinc blende structure with $I^{-}$ ions at lattice points. What fraction of tetrahedral voids is occupied by $Ag^{+}$ ions?
If a solid sphere of mass $1 \,kg$ and radius $0.1\, m$ rolls without slipping at a uniform velocity of $1\, m/s$ along a straight line on a horizontal floor, the kinetic energy is
Hydrogen can be prepared by the action of dil $H_{2}SO_{4}$ on
Cyanogen gas is obtained in the reaction
Composite fruit develops from
Cellulose, the most important constituent of plant cell wall is made up of