List of top Chemistry Questions asked in KEAM

Which of the following are the conditions for a reaction spontaneous at all temperatures?
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\(^1\))
Lanthanides (Ln) burn in O\(_2\) to give
The structure of MnO\(_4^-\) ion is:
On heating an aldehyde with Fehling’s reagent, a reddish-brown precipitate is obtained due to the formation of
An organic compound X (C\(_6\)H\(_5\)O) on reaction with zinc dust gives Y. The product Y reacts with CH\(_3\)COCl in presence of anhydrous AlCl\(_3\) to give Z (C\(_6\)H\(_5\)O). The compounds X, Y, and Z are respectively
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 statement is correct?
Which of the following liquid pairs shows negative deviation from Raoult’s law?
The molarity of a solution containing 8 g of NaOH (Molar mass = 40 g mol\(^{-1}\)) in 250 mL solution is:
When benzene diazonium fluoroborate is heated with aqueous sodium nitrite solution in the presence of copper, the product formed is:
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 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\(^{-1}\)):
The balanced ionic equation for the reaction of K\(_2\)Cr\(_2\)O\(_7\) with Na\(_2\)SO\(_3\) in an acid solution is:
Which of the following material acts as a semiconductor at 298 K?
Which of the following pair exhibits diagonal relationship?
Which of the following statement is correct?
The percentage amylose in starch is about
Transition elements act as catalyst because
Which of the following statement is true?
The molecule which has a see-saw structure is:
The IUPAC name of the coordination compound Hg[Co(SCN)\(_4\)] is
The decreasing order of basic strength of amines in aqueous medium is:
The half-life period of a first order reaction is 1000 seconds. Its rate constant is:
Which of the following statement is incorrect with regard to ozonolysis?