List of top Chemistry Questions asked in KEAM

The rate law for the reaction, A + B → Product, is: \[ {rate} = [A][B]^{3/2} \] The total order of the reaction is:
The rate constant of a first order reaction is \(4.606 \times 10^{-3} \, {s}^{-1}\). The time taken to reduce 20 g of reactant into 2 g is:
The mass percentage of glucose in acetonitrile when 6 g of glucose is dissolved in 294 g of acetonitrile is:
The average oxidation state of sulphur in the tetrathionate ion is:
The quantity of electricity required to produce 18 g of Al from molten Al\(_2\)O\(_3\) is (Atomic mass of Al = 27):
The value of \( K_c \) for the equilibrium reaction \[ 2 {NO}_2(g) \rightleftharpoons {N}_2{O}_4(g) \] is \(2 \times 10^{-40} \, {mol}^{-1} \, {dm}^3\) at 298 K. If the equilibrium concentration of \({NO}_2\) is \(2 \times 10^{-2}\) M, the concentration of \({N}_2{O}_4\) is:
In a process, 600 J of heat is absorbed by a system and 375 J of work is done by the system. The change in internal energy of the process is:
Which of the following is true for a reaction that is spontaneous only at high temperature?
Which of the following is used as anode in mercury cell?
The valence electron MO configuration of \( {C}_2 \) (atomic number of C = 6) molecule is:
The hybridization involved in the metal atom of \([CrF_6]^{3-}\) is:
The decreasing order of first ionization enthalpy of the following elements is:
Which of the following statements is incorrect about Bohr's model of the atom?
The volume of ethanol required to prepare 3 L of 0.25 M aqueous solution is (density of ethanol = 0.36 kg L\(^{-1}\), molar mass = 60 g mol\(^{-1}\)):
The molarity of sodium hydroxide in the solution prepared by dissolving 6 g in 600 mL of water is (molar mass of NaOH = 40 g mol\(^{-1}\)):
A fibrous protein present in muscles is:
When benzene diazonium fluoroborate is heated with aqueous sodium nitrite solution in the presence of copper, the product formed is:
The structure of MnO\(_4^-\) ion is:
Which of the following statement is correct?
The decreasing order of basic strength of amines in aqueous medium is:
On heating an aldehyde with Fehling’s reagent, a reddish-brown precipitate is obtained due to the formation of
Which of the following statement is correct?
The percentage amylose in starch is about
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
Which of the following statement is true?