List of top Questions asked in COMEDK UGET

In 3d-transition series, which one has the least melting point?
Among the following enzymes, which one is involved in the given below catalytic reaction? \[ C_6H_{12}O_6 (aq) \rightarrow 2C_2H_5OH (aq) + 2CO_2 (g) \]
Which of the following is correct mixture of azeotrope?
Rate constant \( K \) of a reaction has least value at
Which of the following pairs of ions are iso-electronic and iso-structural?
How much part of any corner atom actually belongs to a particular unit cell?
Sodium metal crystallizes in a body-centred cubic lattice with a unit cell edge of 4.29 Å. The radius of sodium atom is:
Which of the following amino acids \( \text{NH}_2 \text{CH} \text{RCOOH} \) contains a polar R group?
Find the correct order of \( \text{C} - \text{O} \) bond length among \( \text{CO}, \text{CO}_3^{2-}, \text{CO}_2 \).
The total number of nodes is given by:
In the equilibrium, \( AB \rightleftharpoons A + B \), if the equilibrium concentration of A is double, then the equilibrium concentration of B will be:
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:
Under which of the following conditions, the gases does not follow Henry's law?
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:
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:
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
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:
When the expansion of a gas occurs in vacuum and at constant volume, then:
Carbon monoxide is poisonous to human beings because:
For motion under central forces, which quantity will be conserved?
Which of the following statement is incorrect?
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?