List of top Chemistry Questions asked in JEE Advanced

Among the following compounds, the most acidic is

Extraction of metal from the ore cassiterite involves

Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is

Bombardment of aluminium by a-particle leads to its artificial disintegration in two ways, (i) and (ii) as shown. Products X , Y and Z respectively, are

$AgNO_3$ (aqueous) was added to an aqueous $KCl$ solution gradually and the conductivity of the solution was measured. The plot of conductance $\Lambda$ versus the volume of $AgNO_3$ is

Amongst the given options, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is/are

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are

Extra pure $N_2$ can be obtained by heating

Passing $H_2 S$ gas into a mixture of $Mn^{2+}, Ni^{2+}, Cu^{2+}$ and $Hg^{2+}$ ions in an acidified aqueous solution precipitates

The correct statement(s) pertaining to the adsorption of a gas on a solid surface is (are)

The species having pyramidal shape is

The species which by definition has zero standard molar enthalpy of formation at $298 \,K$ is

Among the following, intensive property is (properties are)

The packing efficiency of the two-dimensional square unit cell shown below is

Plots showing the variation of the rate constant $(k)$ with temperature $(T)$ are given below. The plot that follows Arrhenius equation is

Aqueous solutions of $HNO_3 \, KOH, \, CH_3COOH$ and $CH_3COONa $ of identical concentrations are provided. The pair(s) of solutions which form a buffer upon mixing is(are)

The correct statement about the following disaccharide is

In the reaction. the intermediate(s) is/are

In the Newman projection for $2,2$-dimethylbutane $X$ and $Y$ can respectively be

The synthesis of $3$-octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are

The reagent(s) used for softening the temporary hardness of water is(are)

The ionisation isomer of $[Cr(H_2O )_4Cl(NO_2 )]Cl$ is

Assuming that Hund's rule is violated, the bond order and magnetic nature of the diatomic molecule $B_2$ is

The complex showing a spin only magnetic moment of $2.82\, BM$ is