List of top Questions asked in CUET (UG)- 2026

The symbol \(r\) in population ecology represents

Arrange the following steps of the Polymerase Chain Reaction (PCR) in the correct sequence.
• Primer Annealing
• Denaturation
• Extension by DNA Polymerase Choose the correct answer from the options given below:

If \[ \sin^{-1}x+\cos^{-1}x=\theta \] find \(\theta\).

Find the equation of the tangent to \[ y=x^3-3x+1 \] at the point where \(x=2\).

A bag contains 5 red balls, 4 blue balls and 3 green balls. Two balls are drawn at random without replacement. The probability that both balls are red is:

RNA interference (RNAi) is a process that results in

Find the shortest distance between the skew lines \[ \vec r=(1,0,0)+\lambda(1,1,0) \] and \[ \vec r=(0,1,1)+\mu(0,1,1) \]

Androgens are primarily secreted by which of the following cells?

If \[ \int_{0}^{1}(3x^2+2x+1)\,dx=k, \] then the value of \(k\) is:

If \[ \int \frac{2x+1}{x^2+x+1}\,dx \] is equal to:

The differential equation of the family of curves \[ y=ce^{2x} \] is:

If \[ z=\frac{1+i}{1-i}, \] then \(z^8\) equals:

The number of 5-digit numbers that can be formed using the digits \(1,2,3,4,5,6\) without repetition and divisible by \(5\) is:

If a random variable \(X\) has probability distribution \[ P(X=x)=kx, \] \[ x=1,2,3,4, \] then the value of \(k\) is:

Which reagent is used to distinguish between ethanal and propanone?

Which of the following statements regarding actinoids is correct?

The major product obtained when benzene diazonium chloride is heated with water is:

Which reagent converts phenol into salicylaldehyde?

For a second-order reaction, the unit of rate constant is:

Which of the following complexes is diamagnetic?

In a semiconductor, the conductivity increases with increase in temperature because

An organic compound gives a positive semicarbazide test and on reduction produces propan-2-ol. The compound is:

Cumene is industrially used for the preparation of phenol. During the manufacture of phenol from cumene, which of the following compounds is obtained as a valuable by-product?

Consider the following reaction sequence: \[ 2CH_3CHO \xrightarrow{\text{Dil. NaOH}} X \] \[ X \xrightarrow{\Delta} Y \] The major product \(Y\) formed in the above reaction is:

Two capacitors of capacitances \(6\,\mu F\) and \(3\,\mu F\) are connected in series across a battery. The equivalent capacitance of the combination is