List of top Questions asked in KEAM- 2025

The hydrocarbon with molecular formula $C_{20}H_{42}$
When n-hexane is passing over $Mo_2O_3$ catalyst at 773 K and 10–20 atm pressure, the product formed is
The metal ion present in the Wilkinson’s catalyst is
The IUPAC name of the complex \([Co(NH_3)_3(H_2O)_3]Cl_3\) is
The complexes \([Co(NH_3)_5Br]SO_4\) and \([Co(NH_3)_5SO_4]Br\) are examples of
The transition metal ion with the least ionic radius (in pm) is
\(KMnO_4\) is prepared from Mn(II) ion salts by oxidizing it with
The lanthanoid with the outer electronic configuration \(4f^7 5d^1 6s^2\) is
What is the unit of rate constant for a second order reaction?
Which of the following is an incorrect statement?
Which of the following is a colourless transition metal ion?
The \(3d\) metal that forms fluoride in +6 oxidation state is
The transition metal oxide used as a catalyst in the manufacture of sulphuric acid is
Which of the following gas has highest solubility in water at 298 K?
Enthalpy change is always negative for which one of the following processes?
What are the thermodynamic conditions for a reaction to be spontaneous at low temperature and non-spontaneous at high temperature?
A monobasic acid HA has pH of 3 in 0.1 M solution at 298 K. What is the pKa of the acid at 298 K?
The ion with the highest limiting molar conductance at 298 K is
What is the quantity of current required to deposit one mole of metallic magnesium from fused magnesium chloride? (1F = 96500 C)
Main group elements are
In which of the following compounds there is an expanded octet around the central atom?
Which of the following molecule has tetrahedral geometry?
Which of the following statements are correct about canal rays?
• [(i)] They carry positively charged particles.
• [(ii)] The mass of the particles of these rays does not depend upon the gas present in the cathode ray tube.
• [(iii)] The particles behave in a different manner in electric field as those of cathode rays.
• [(iv)] The charge to mass ratio of the particles does not depends on the gas present in the cathode ray tube.
Which of the following is a metalloid?
A solution contains \(9.8 \, \text{g}\) of \(H_2SO_4\). How much NaOH is required to completely neutralize it? (molar mass of NaOH = \(40 \, \text{g mol}^{-1}\))