List of top Chemistry Questions asked in AIIMS

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
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?
Hydrogen can be prepared by the action of dil $H_{2}SO_{4}$ on
Cyanogen gas is obtained in the reaction
The position of an element in periodic table after emission of one $\alpha$ - and two $\beta$ - particles remains unchanged. Emission of one $\alpha$ - and two $\beta$ - particles give isotope of the element which acquires same position in periodic table.
: The conversion of fresh precipitate to colloidal state is called peptization. : It is caused by addition of common ions.
Ozone is an allotrope of oxygen. Oxygen is bluish colour liquid and in singlet state it is more paramagnetic.
F is more electronegative than Cl F has high electron affinity than Cl.
: $F-F$ bond in $F _{2}$ molecule is strong. : $F$ atom is small in size.
: Chlorine has higher electron affinity than fluorine. : Chlorine is a poor oxidising than fluorine.
Benzene diazonium salt on boiling with water forms phenol. C $-$ N bond is polar.
: At high pressure, the compression factor $Z$ is $\left(1+\frac{P b}{R T}\right)$. : At high pressure van der Waals' equation is modified as $P(V-b)=R T$.
: According to Kohlrausch law the molar conductivity of a strong electrolyte at infinite dilution is sum of molar conductivities of its ions. : The current carried by cation and anion is always equal.
$CH _{3} OC _{2} H _{5}$ and $\left( CH _{3}\right)_{3} C - OCH _{3}$ are treated with hydroiodic acid. The fragments after reactions obtained are
One mole of methanol when burnt in $O _{2}$, gives out $723\, kJ\, mol ^{-1}$ heat. If one mole of $O _{2}$ is used, what will be the amount of heat evolved?
Plexiglass is a commercial name of
The species having tetrahedral shape is
Which of the following does not exist as a Zwitter ion?
The hydrocarbon which does decolourise alkaline $KMnO_{4}$ solution and also does not give any precipitate with ammoniacal silver nitrate is