List of top Questions asked in CUET (UG)

Which one of the following pairs has only paramagnetic species?
Correct number of lone pairs in $SF_{4}$ and $H_{2}O$ molecules, respectively, should be ________.
The element with atomic number 53 belongs to ________.
In which of the following compounds, metal is in lowest oxidation state?
The atomic radii of Zr and Hf are almost identical. This is because of ________.
In order to distinguish between $C_{2}H_{5}NH_{2}$ and $C_{6}H_{5}NH_{2}$ which of the following reagents is useful?
Which of the following is the strongest acid?
The product formed upon heating methyl bromide with potassium tert-butoxide is ________.
Which of the following does not give iodoform test?
Which of the following compounds gives a positive Tollen's test but negative Fehling's test?
The most stable conformation of 1,2-dibromomethane among the following is:
Identify the following named reaction:
A compound with the molecular formula $C_{5}H_{5}N$ and having 3 double bonds will be ________.
A positive charge q is distributed over a circular ring of radius a. It is placed in a horizontal plane and is rotated about its axis at a uniform angular speed $\omega$. A horizontal magnetic field B exists in the space. The torque acting on the ring due to the magnetic force is ________.
When a beam of 10.6 eV photons falls on a platinum surface, 53% of incident photons eject photoelectrons. If intensity is $2.0~W/m^2$ and area is $1.0\times10^{-4}~m^2$, the number of photoelectrons emitted per second is:
The correct IUPAC name for the given molecule should be ________.
What is the magnetic induction of the field at the point O in a current I carrying wire that has the shape as shown in the figure? The radius of the curved part of the wire is R, the linear parts are assumed to be very long.
In the circuit shown in figure, the potential barrier for Ge diode is 0.3 V and for Si diode it is 0.7 V. What is the voltage $V_{A}$?
Two slits in Young's interference experiment have width in the ratio 1: 4. The ratio of intensity at the maxima and minima in their interference is ________.
If the total energy of a particle executing SHM is E, then the potential energy V and the kinetic energy K of the particle in terms of E when its displacement is half of its amplitude will be ________.
A spring balance has a scale that reads 0 to 50 kg. The length of the scale is 20 cm. A body suspended from this spring, when displaced and released, oscillates with a period of 0.60 s. What is the weight of the body?
Soapy water drips from a capillary. When the drop breaks away, the diameter of its neck is D. The mass of the drop is m. The surface tension of soapy water is ________.
A parallel beam of light ray parallel to the x-axis is incident on a parabolic reflecting surface $x=2by^{2}$ as shown in the figure. After reflecting it passes through focal point F. What is the focal length of the reflecting surface?
A family uses 8 kW of power. Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8 kW? }
A 40 kg boy whose legs are 4 $cm^{2}$ in area and 50 cm long falls through a height of 2 m without breaking his leg bones. If the bones can withstand a stress of 0.9 $\times10^{8}N/m^{2}.$ The Young's modulus for the material of the bone is ________.