List of top Questions asked in AIIMS

On adding zinc pieces to aqueous $FeCl_{3}$ solution, colour changes from deep yellow to light green. Aqueous $FeCl_{3}$ is acidic and on adding $Zn$, nascent hydrogen is produced which reduces deep yellow $FeCl_{3}$ solution to light green $FeCl_{2}$solution.
Number of radial and angular nodes for $3p$-orbital are 1, 1 respectively. Number of radial and angular nodes depends only on principal quantum number.
Meiosis II is similar to mitosis. Meiosis I cannot occur in haploid cells.
If optical density of a substance is more than that of water then the mass density of substance can be less than water. Optical density and mass density are not related.
Heat from the sun reaches the earth by convection. Air can be heated only by convection.
Gram negative bacteria do not retain the stain when washed with alcohol. The outer membrane of Gram negative$ (-ve)$ bacteria contain lipopolysaccharides, a part of which is integrated into membrane lipid.
Formic acid reduces Tollen?? reagent. Compounds containing $??HO$ group reduce Tollen?? reagent.
Electrons move from a region of higher potential to a region of lower potential. An electron has less potential energy at a point where potential is higher and vice-versa.
Cu is stronger reducing agent than $H_2$. E$^{\circ}$ of $Cu^{2+}/Cu$ is negative.
Different varieties of Indian mangoes are most popular in Western and some other European countries. The varieties with different flavour, colour, sugar and fleshy content is due to
The common characteristic showing by mushroom smut and rust
A reptilian looks like house lizard is sitting on plant with its tail coiled around twig in your garden. Can you identify the animal?
Which one of the following set meaning is not different?
Which one of the following best describe polygenic inheritance?
How macula lutea and corpus luteum are related?
Corpus callosum connects the two cerebral hemispheres. Association areas are responsible for complex functions like intersensory association of memory and communication.
A man whose father is a colourblind, marry a woman, who is a daughter of colourblind mother. The offspring of this couple will be
In a child of $15$ years age, plasma calcium level is diagnosed below optimum level. Which organ is malfunctioning?
Bond dissociation energy is $F_2 > Cl_2$. $Cl_2$ has more electronic repulsion than $F_2$.
At the centre of earth a body has centre of mass, but no centre of gravity. This is because $g = 0$ at the centre of earth.
A body can be at rest even when it is under the action of any number of external forces. Vector sum of all the external forces is zero.
Arrange the following compounds in increasing order of reactivity towards nucleophilic addition reaction. (I)$C_6H_5COCH_3$ (II) $CH_3 CO-C_2H_5$ (III)$C_6H_5CHO$ (IV) $Cl-CH_2 - CHO$
Electron affinity is positive, when
The composition of a sample of wustite is $Fe _{0.93} O$. What percentage of the iron is present in the form of Fe (III)?
What would be the expected product of the reaction of propyne with$ Br_{2}/H_{2}O$ if the mechanism of this reaction is analogous to that of propene?