List of top Questions asked in AIIMS

Na/K pump is associated with

N?? bond length is minimum in

Magnetic moment of $Cr^{2+}$ is nearest to

In Bohr?? orbit, $\frac{nh}{2\pi}$ indicates

In aerobic respiration, total number of ATP molecules formed from 1 glucose molecule is

In a convex lens of focal length $F$, the minimum distance between an object and its real image must be

If $Si$ is doped with $B$,

Find the voltage drop across a capacitor connected with a resistance and a battery of $60\, V$ in series after a long time.

Etherates are

Dimensional formula of $\Delta Q$, heat supplied to the system is

Deuteromycetes are known as fungi imperfecti because

$CsCl$ has $bcc$ arrangement. Its unit cell edge length is $400\,pm$. Its inter-ionic distance is

But-1-ene $ { ->[{(CH_3COO)_2Hg}][{H_3O^+}] }$ ? The product in the above reaction is

Bond dissociation energy of CH is 360 kJ/mol and CH is 620 kJ/mol. Then bond dissociation energy of C - C bond is

Beads on string like structures of A are seen in B, which further condense to form chromosomes in C stage of cell division. $\quad$$\quad$ $\quad$A$\quad$ $\quad$$\quad$$\quad$ B$\quad$$\quad$$\quad$ C

Vibrational energy of diatomic molecule corresponding to each degree of freedom is kT. For every molecule, vibrational degree of freedom is 2.

More energy is released in fusion than fission. More number of nucleons take part in fission.

van-Arkel method is used to prepare samples of some metals. It involves reaction of $CO$ with metals to form volatile carbonyls which decompose on heating to give pure metal.

The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides. The intermediate carbanion is stabilised due to the presence of nitro group.

The free gaseous Cr atom has six unpaired electrons. Half-filled s-orbital has greater stability.

Sodium carbonate extract of a salt containing sulphide ions gives a violet colour with appropriate reagent. The reagent sodium nitroprusside gives violet colour due to the formation of sodium thionitroprusside.

Sodium acetate on Kolbe?? electrolysis gives methane. Methyl free radical is formed at cathode.

Precipitation of soap is made by the addition of salt $(NaCl)$. Presence of common ion suppresses the dissociation of weak acid.

Phenol is more reactive than benzene towards electrophilic substitution reaction. In the case of phenol, the intermediate carbocation is more resonance stabilised.

In a terrestrial ecosystem, detritus food chain is the major conduit for energy flow. Solar energy is the direct source for energy supply in a detritus food chain.