List of top Chemistry Questions asked in AIIMS

Arrange the given set of compounds in order of increasing boiling points. I. $1$-chloropropane II. Iso-propyl chloride III. $1$-chlorobutane
The order of reactivity of halides towards $S_N1$ mechanism is
Which of the following is an amorphous solid?
Tincture of iodine is
The yellow colour in $NaCl$ crystals is due to
The polymer obtained by the interaction of ethylene glycol and terephthalic acid is
The domestic sewage in large cities
The degeneracy of hydrogen atom that has energy equal to $\frac{-R_{ H }}{9}$ is (where $R_{ H }=$ Rydberg constant)
The antibiotics have no effect on viruses because
Copper sulphate is dissolved in water containing ________ for making Bordeaux mixture.
Teflon is chemically inert substance. Chloroform when treated with antimony trifluoride gives teflon.
$ BeSO_4$ is soluble in water while $BaSO_4$ is not. Hydration energy decreases down the group from Be to Ba and lattice energy remains almost constant.
Choose the correct statement :
Amongst the following, the most stable complex is
Addition of group-13 elements to intrinsic semiconductors results in
When a substance ' $A$ ' reacts with water, it produces a combustible gas ' $B$ ' and a solution of substance ' $C$ ' in water. while another substance ' $D$ ' reacts with solution of ' $C$ ' to produce the same gas $B$ on warming while ' $D$ ' can produce gas ' $B$ ' on reaction with dilute $H _{2} SO _{4}$ at room temperature. ' $A$ ' imparts a deep golden yellow colour to a smokeless flame on Bunsen burner. Identify 'A', $' B$ ', ' $C$ ' and ' $D$ ' respectively are
$KO _{2}$ (potassium superoxide) is used in oxygen cylinders in space and submarines because of it
The factor of $\Delta G$ values is important in metallurgy. The $\Delta G$ values for the following reactions at $800^{\circ} C$ are given as $ S _{2}(g)+2 O _{2}(g) \longrightarrow 2 SO _{2}(g) ; \Delta G=-544 \,kJ$ $2 Zn (s)+ S _{2}(g) \longrightarrow 2 ZnS (s) ; \Delta G=-293 \,kJ $ $2 Zn (s)+ O _{2}(g) \longrightarrow 2 ZnO (s) ; \Delta G=-480\, kJ$ The $\Delta G$ for the reaction, $2 ZnS (g)+3 O _{2}(g) \longrightarrow 2 ZnO (g)+2 SO _{2}(g)$ will be
The reaction of a primary amine with chloroform and ethanolic solution of $KOH$ is called
The correct order of oxidising power is : $VO_2^+$ $< Cr_2O_7^{2-} < MnO_4^-$ The oxidation state of $Mn$ is $+7$.
An ideal solution obeys Raoult?? law. In an ideal solution, solute-solute as well as solvent-solvent interactions are similar to solute-solvent interactions.
The value of Henry�s constant K is
For the reaction $ {$A_{\left(g\right)}$ ->$ B_{\left(g\right)}$ + $C_{\left(g\right)}$, }$ the rate constant is given as (P is initial pressure and P is pressure at time t)
Ortho and para-nitrophenol can be separated by steam distillation. Para-nitrophenol is steam volatile due to intramolecular hydrogen bonding.
What is $X$, in the following reaction? $KHSO _{4}+ F _{2} \longrightarrow HF +X$