List of top Chemistry Questions asked in KEAM

Which of the following statement is incorrect with regard to ozonolysis?
Which of the following statement is incorrect?
In a combustion reaction, heat change during the formation of 40 g of carbon dioxide from carbon and dioxygen gas is (Enthalpy of combustion of carbon = -396 kJ mol\(^1\))
The IUPAC name of the coordination compound Hg[Co(SCN)\(_4\)] is
Lanthanides (Ln) burn in O\(_2\) to give
Transition elements act as catalyst because
Which of the following are the conditions for a reaction spontaneous at all temperatures?
The molarity of a solution containing 8 g of NaOH (Molar mass = 40 g mol\(^{-1}\)) in 250 mL solution is:
For the equilibrium at 500 K, \( \text{N}_2 (\text{g}) + 3\text{H}_2 (\text{g}) \rightleftharpoons 2\text{NH}_3 (\text{g}) \), the equilibrium concentrations of \(\text{N}_2 (\text{g})\), \(\text{H}_2 (\text{g})\) and \(\text{NH}_3 (\text{g})\) are respectively 4.0 M, 2.0 M, and 2.0 M. The \(K_c\) for the formation of \(\text{NH}_3\) at 500 K is:
The resistance of a conductivity cell filled with 0.02 M KCl solution is 520 ohm at 298 K. The conductivity of the solution at 298 K is (Cell constant = 130 cm\(^{-1}\)):
Which of the following material acts as a semiconductor at 298 K?
The half-life period of a first order reaction is 1000 seconds. Its rate constant is:
Which of the following liquid pairs shows negative deviation from Raoult’s law?
The limiting molar conductances of NaCl, HCl and CH\(_3\)COONa at 300 K are 126.4, 425.9 and 91.0 S cm\(^2\) mol\(^-1\) respectively. The limiting molar conductance of acetic acid at 300 K is:
The balanced ionic equation for the reaction of K\(_2\)Cr\(_2\)O\(_7\) with Na\(_2\)SO\(_3\) in an acid solution is:
The total enthalpy change when 1 mol of water at 100°C and 1 bar pressure is converted to ice at 0°C is:
The quantum number which determines the shape of the subshell is:
The molecule which has a see-saw structure is:
Which of the following pair exhibits diagonal relationship?
260 g of an aqueous solution contains 60 g of urea (Molar mass = 60 g mol\(^{-1}\)). The molality of the solution is:
Which of the following is the most reactive in aromatic electrophilic substitution reaction?
Which of the following vitamin deficiency causes increased fragility of RBCs and muscular weakness?
Kjeldahl method can be used to estimate nitrogen in
The melting point of \( \beta \)-form of crystalline glucose is
The decreasing order of basic strength in aqueous solution of amines is