List of top Questions asked in CUET (UG)- 2021

Let det M denotes the determinant of the matrix M. Let A and B be $3 \times 3$ matrices with det A = 3 and det B = 4. Then the det (2AB) is ________.
Dissociation constant and molar conductance of acetic acid are $1.78\times10^{-5}~mol~L^{-1}$ and $48.15~S~cm^{2}~mol^{-1}$. Conductivity is:
Which of the following is the most stable free radical?
The pOH of a 0.0235 M hydrochloric acid will be ________.
Which among the following is a false statement?
Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): A solution of table salt in a glass of water is homogeneous.
Reason (R): A solution having same composition throughout is heterogeneous. In the light of the above statements, choose the most appropriate answer from the options given below:
An element has a cubic structure with a cell edge of 288 pm. The density of the element is $7.2~g~cm^{-3}$. 208 g of the element has $24.16\times10^{23}$ numbers of atoms. The unit cell of this cubic structure is ________.
In the following reaction, identify X: $Cr_{2}O_{7}^{2-} + X \xrightarrow{H^{+}} Cr^{3+} + H_{2}O + \text{Oxidized product of X}$}
Match List-I with List-II:
The correct set of quantum numbers for 3d subshell is ________.
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 ________.
Which of the following is the strongest acid?
Which of the following does not give iodoform test?
The product formed upon heating methyl bromide with potassium tert-butoxide is ________.
Which of the following compounds gives a positive Tollen's test but negative Fehling's test?
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 pairs can be distinguished by Lucas 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 ________.