List of top Chemistry Questions asked in AIIMS

Which of the following has maximum ionisation potential?
The solubility in water of sulphates down the $Be$ group is $Be > Mg > Ca > Sr > Ba$. This is due to
Oxidation state of osmium (Os) in $OsO_4$ is
Which of the following will not undergo hydrolysis in water?
Which of the following is the correct statement for $PH_3$ ?
Which of the following salt has the same value of vant?s Hoff factor as that of $K _{3}\left[ Fe ( CN )_{6}\right]$ ?
The solubility of $BaSO_4$ in water is $2.33 \times 10^{-3}$ gram/litre. Its solubility product will be (molecular weight of $BaSO_4 = 233$)
A first order reaction, which is $30\%$ complete in $30$ minutes has a half-life period of
The rate constant of reaction is $0.69 \times 10^{-2} min ^{-1}$ and the initial concentration is $0.2\, mol L ^{-1}$. The half-life period is
The rate of diffusion, is
The equivalent weight of an acid is equal to
One gram mole of a gas at NTP occupies $22.4\, L$. This fact was derived from
A compound with empirical formula $CH_2O$ has a vapour density of $30$. Its molecular formula is
An equilibrium mixture of the reaction $2 H _{2} S _{( s )} \rightleftharpoons 2 H _{2( g )}+ S _{2( g )}$, had $0.5\, mole\, H _{2} S$ $0.10$ mole $H _{2}$ and $0.4$ mole $S _{2}$ in one litre vessel. The value of equilibrium constant $( K )$ in mole litre $^{-1}$ is

Which of the following is not correctly matched?

Which of the following is the most stable alkene?
Which of the following is the main cause of late discovery of neutron?
Which one of the following is used to make ??on-stick??cookware?
Which one of the following shows maximum paramagnetic character?
The reaction, $ {Benzene + methyl \,halide ->[Anhy.AlCl_3]Toluene,}$ is known as
The product obtained when acetic acid is treated with phosphorus trichloride, is
The boiling point of water $\left(100^{\circ} C \right)$ becomes $100.52^{\circ} C$, if $3$ grams of a non-volatile solute is dissolved in $200 \,ml$ of water. The moleular weight of solute is (if $K _{ b }$ for water is $=0.6\, K / m$ )
In an endothermic reaction, the value of change in enthalpy $(\Delta H)$ is
Hess??law is applicable for the determination of heat of
Baeyer?? reagent is used in the laboratory for