List of top Questions asked in KEAM- 2024

The decreasing order of first ionization enthalpy of the following elements is:
A path length of 1m in air is equal to a path length of \(x\) m in a medium of refractive index 1.5. Then the value of \(x\) (in meters) is:
Ratio between the frequencies of the third harmonics in the closed organ pipe and open organ pipe of the same length is:
If the acceleration due to gravity on the surface of a planet is 2.5 times that on Earth and radius, 10 times that of the Earth, then the ratio of the escape velocity on the surface of a planet to that on Earth is:
The displacement-time graph of a moving body is a straight line making a 45\(^{\circ}\) angle with the time axis. The body moves with:
A block of mass \( M \) is placed on the floor of a lift at the center. The acceleration required for the lift to descend so that the block exerts a force of \( \frac{Mg}{4} \) on the lift floor is:
For a smoothly running analog clock, the angular velocity of its second hand in rad s\(^{-1}\) is:
One mole of an alkene on ozonolysis gives a mixture of one mole pentan-3-one and one mole methanal. The alkene is:
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\(^{-1}\)):
The hybridization involved in the metal atom of \([CrF_6]^{3-}\) is:
Which of the following is used as anode in mercury cell?
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:
The average oxidation state of sulphur in the tetrathionate ion is:
A spherical metal shell \( A \) of radius \( R_A \) and a solid metal sphere \( B \) of radius \( R_B \) (\( R_B<R_A \)) are kept far apart and each is given charge \( +Q \). If they are connected by a thin metal wire and \( Q_A \) and \( Q_B \) are the charge on \( A \) and \( B \), respectively, then:
The mass percentage of glucose in acetonitrile when 6 g of glucose is dissolved in 294 g of acetonitrile is:
The type of d-d transition of the electron occurs in \([Ti(H_2O)_6]^{3+}\) is:
The increasing order of field strength of ligands in the spectrochemical series is:
Which of the following is used in the treatment of lead poisoning?
The number of unpaired electrons in \([CoF_6]^{3-}\) is:
If the displacement of a body moving on a horizontal surface is 151.25 cm in a time interval of 2.25 s, then the velocity of the body in the correct number of significant figures in cm s\(^{-1}\) is:
The maximum velocity of a fluid in a tube for which the flow remains streamlined is called its:
A tertiary alkyl halide (X), C\(_4\)H\(_9\)Br, reacted with alc.KOH to give compound (Y). Compound (Y) reacted with HBr in presence of peroxide to give compound (Z). The compounds (Y) and (Z) are respectively:
The current flowing from p to n side in a pn junction diode irrespective of biasing is termed:
Lactose is composed of:
A ball is thrown up vertically at a speed of 6.0 m/s. The maximum height reached by the ball (Take \( g = 10 { m/s}^2 \)) is: