List of top Questions asked in COMEDK UGET- 2021

Find the correct order of \( \text{C} - \text{O} \) bond length among \( \text{CO}, \text{CO}_3^{2-}, \text{CO}_2 \).
Which of the following is used as a drug to reduce fever?
The reaction: \[ \text{ArN}^{+} \text{Cl}^{-} \xrightarrow{\text{Cu/HCl}} \text{ArCl} + N_2 + \text{CuCl} \] is called as:
Sodium metal crystallizes in a body-centred cubic lattice with a unit cell edge of 4.29 Å. The radius of sodium atom is:
In the equilibrium, \( AB \rightleftharpoons A + B \), if the equilibrium concentration of A is double, then the equilibrium concentration of B will be:
The total number of nodes is given by:
Determine the specific rate constant of the reaction. If the half-life period of a first-order reaction is 1402 s, then the rate constant is:
An aqueous solution of \( X \) on addition of hydrogen peroxide in ice-cold conditions gives blue colour to the ethereal layer. Then, \( X \) can be:
Under which of the following conditions, the gases does not follow Henry's law?
Which one of the following sets of monosaccharides forms sucrose?
In Young’s double slit experiment with sodium vapour lamp of wavelength 589 nm and slit 0.589 mm apart, the half angular width of the central maxima is
When the expansion of a gas occurs in vacuum and at constant volume, then:
Carbon monoxide is poisonous to human beings because:
An optical fibre communication system works on a wavelength of \( 1.3 \, \mu m \). The number of subscribers it can feed, if a channel requires 20 kHz, are:
If impedance is \( \sqrt{3} \) times resistance, then find phase difference.
A bar magnet is oscillating in the earth’s magnetic field with a period \( T \). What happens to its period and motion, if its mass is quadrupled?
The relative permeability of iron is 6000. Its magnetic susceptibility is
Which of the following statement is incorrect?
For motion under central forces, which quantity will be conserved?
The relative errors in the measurement of two lengths \(1.02 \, \text{cm} \pm 0.01 \, \text{cm}\) and \(9.89 \, \text{cm} \pm 0.01 \, \text{cm}\) is
What should be the value of self-inductance of an inductor that should be connected to 220 V, 50 Hz supply, so that a maximum current of 0.9 A flows through it?
When two bodies collide with each other such that their kinetic energy remains constant, their collision is said to be
Two masses of 1g and 9g are moving with equal kinetic energy. The ratio of magnitude of their momentum is
Ba-122 has half-life of 2 min. Experiment has to be done using Ba-122 and it takes 10 min to set up the experiment. It initially had 80 g of Ba-122. How much Ba-122 was left when the experiment started?
In a detector, the output circuit consists of \( R = 10 \, \text{k}\Omega \) and \( C = 100 \, \text{pF} \). The frequency of carrier signal it can detect is: