List of top Chemistry Questions asked in AIIMS

A sample of $0.42 \,mg \,{ }^{233} UF _{6}$ shows an activity of $9.88 \times 10^{4}$ count per second. Its $t_{1 / 2}$ is
The correct set of reagents for the following conversion is
Sodium crystallizes in bcc arrangement with the interfacial separation between the atoms at the edge $53\, pm$. The density of the solid is
Which of the following coordination entities should be expected to absorb light of lowest frequency?
The rubber, used for manufacturing tyres is vulcanised with
The increasing order of hydrolysis of the following compounds is
Which of the following is considered as an anticancer species?
The emf of Daniell cell at $298 K$ is $E_{1}$ $Zn \left| ZnSO _{4}(0.01 M )\right|\left| CuSO _{4}(1.0 M )\right| Cu$ When the concentration of $ZnSO _{4}$ is $1.0 M$ and that of $CuSO _{4}$ is $0.01 M$, the emf changed to $E_{2}$. What is the relation between $E_{1}$ and $E_{2}$ ?
What is the $pH$ value of $M H _{2} SO _{4}$ ?
When a concentrated solution is diluted by adding more water, molarity of the solution remains unchanged. Product of moles of a solute and volume is equal to the molarity.
Acid hydrolysis of sucrose is a
For a first order reaction, to obtain a positive slope, we need to plot {where $[A]$ is the concentration of reactant $A$}
During electrolysis of water the volume of $O _{2}$ liberated is $2.24\, dm ^{3}$. The volume of hydrogen liberated, under same conditions will be
Fluorine molecule has bond order one. The number of electrons in the ant bonding molecular orbitals is two less than that in bonding molecular orbitals.
According to Le-Chatelier?? principle addition of heat to an equilibrium solid ? liquid results in decrease in the amount of solid. Reaction is endothermic, so on heating forward reaction is favoured.
Oxidation product of 1,2-cyclopentanediol with $HIO _{4}$ gives
The statement which is not correct, is
Select correct statement(s).
The chemical formula of 'tear gas' is
Which of the following is a primary halide?
Which of the following is a lyophobic colloidal solution?
Which of the following molecules will not show optical activity?
Which one of the following is not a surfactant?
Which of the following compounds is coloured?
Which of the following amines, can give N-nitrosoamine on treatment with $HNO_2$ ?