List of top Questions asked in COMEDK UGET- 2021

Which of the following is correct mixture of azeotrope?
Find the final product for the reaction: \[ \text{C}_6\text{H}_5\text{CHO} + \text{CH}_3\text{CO}\text{C}_6\text{H}_5 \xrightarrow{\text{OH}^-, 293 K} \text{Product} \]
Why do ketones and carboxylic acids have higher boiling points as compared to aldehydes?

What is the product formed when benzene reacts with CO and HCl in presence of anhydrous AlCl\(_3\)? 
 

What is the electric field near an infinite plane sheet of charge density \( \sigma \)?
The surface tension of a liquid at its boiling point
Which of the following waves are used in the treatment of muscle ache?
The displacement of a wave is given by \( y = 20 \cos(\omega t + 4x) \). The amplitude of the wave is
The function \( y = \log(\omega t) \) can represent
The motion of a particle of mass \( m \) is described by \( y = ut + g t^2 \). The force acting on the particle will be
When a car of mass \( m \) is moving with speed \( v \) along a circle of radius \( r \) on a level road, the centripetal force is provided by \( f \), where \( f \) denotes
Given that molar conductances for \(Ba(OH)_2\), \(BaCl_2\) and \(NH_4Cl\) are 523.28, 280.0 and 129.8 \( \Omega^{-1}cm^2mol^{-1} \), respectively. What is the molar conductivity \( \Lambda \) of \(NH_4OH\) at this temperature will be:

From the figure describing photoelectric effect, we may infer correctly that

What is the argument of the complex number \(\frac{(1 + i)(2 + i)}{3 - i}\), where \( i = \sqrt{-1} \) ?

Which of the following is not a greenhouse gas?
The Lyman series of a hydrogen atom belongs in which category
Shade the feasible region for the inequalities \[ x + y \geq 2, \quad 2x + 3y \leq 6, \quad x \geq 0, \quad y \geq 0 \] in a rough figure.
If A, B, and C are mutually exclusive and exhaustive events of a random experiment such that P(B) = (3/2) P(A) and P(C) = (1/2) P(B), then P(A ∪ C) equals:
Find the maximum value of f(x) = (1 / (4x2 + 2x + 1)).
If (√3 + i)100 = 299 (a + ib), then a2 + b2 is equal to:
Number of terms in the binomial expansion of (x + a)53 + (x - a)53 is:
The coefficient of x10 in the expansion of 1 + (1 + x) + (1 + x)2 + … + (1 + x)20 is:
If f(x) = { ax + 3, for x ≤ 2
a(x - 1), for x > 2 }, then the values of a for which f is continuous for all x are:
The equation of the normal to the curve y = (1 + x)y + sin-1(sin2x) at x = 0 is:
If A ⋅ adj(A) = [ -2 0 0 ]
[ 0 -2 0 ]
[ 0 0 -2 ], then |adj(A)| equals: