List of top Chemistry Questions asked in KEAM

Compound ‘X’ (C\(_6\)H\(_6\)O) reacts with aqueous NaOH to give compound ‘Y’. ‘Y’ reacts with CO\(_2\) followed by acidification to give compound ‘Z’. The compounds X, Y and Z are respectively
Which of the following statement is incorrect?

The reagents and conditions (X) required for the following conversion 

Which of the following substitution reaction with methane requires HIO\(_3\) as an oxidising agent?
Which of the following statement is incorrect with Kolbe’s electrolytic method?
The IUPAC name of HOCH\(_2\)(CH\(_2\))\(_3\)CH\(_2\)COCH\(_3\) is
The coordination number of Pt and Fe in the complexes [PtCl\(_6\)]\(^{2-}\) and [Fe(C\(_2\)O\(_4\))\(_3\)]\(^{3-}\) are respectively
The catalyst used in the Wacker process is
Which of the following is an acidic oxide?
Lanthanides (Ln) when heated with carbon at 2773K form product with general formula
Which of the following tripositive ion has smallest size?
Which of the following has the least atomic radius?
Radioactive decay follows
Which of the following compound has the lowest boiling point?
The conductivity of 0.02 mol L\(^{-1}\) KCl solution is 0.248 S m\(^{-1}\). Its molar conductivity is
Which of the following statement is true with regard to Daniell cell?
PCl\(_5\)(g), PCl\(_3\)(g) and Cl\(_2\)(g) are at equilibrium at 500 K. The equilibrium concentrations of PCl\(_3\), Cl\(_2\) and PCl\(_5\) are respectively 4.0 M, 4.0 M and 2.0 M. Calculate \( K_c \) for the reaction: \[ {PCl}_5(g) \rightleftharpoons {PCl}_3(g) + {Cl}_2(g) \]
Which of the following statement is incorrect?

The vapour pressure of H\(_2\)O at 323K is 95 mm of Hg. 176g of sucrose (Molar mass = 342 gmol\(^{-1}\)) is added to 900g of H\(_2\)O at 323K. 
The vapour pressure of solution is about

Which of the following molecule is paramagnetic?
Which of the following has square planar structure?
The electronic configuration of Pd (Z = 46) is
Which of the following set of quantum numbers is possible?
10 g of alcohol is dissolved in 90 g of water. The percentage of alcohol in the solution is

The values of X, Y, and Z in the following chemical equation are respectively: 
\( S_8 + X HNO_3 ({conc.}) \rightarrow Y H_2SO_4 + X NO_2 + Z H_2O \)