List of top Questions asked in COMEDK UGET

The magnetic properties of a magnet is lost at its
The mole fraction of dioxygen in a neon-dioxygen mixture is $0.18$. If the total pressure of the mixture is $25$ bar, the partial pressure of neon in the mixture would be
A card is picked at random from a pack of cards. Given that the picked card is a Queen, what is the probability that it is a spade ?
Sodium dissolves in liquid $NH_3$ to give a deep blue solution. This is due to
$ {SO2 + 2H2S -> 3S + 2H2O}$ . This equation represents preparation of sulphur sol by
Sodium cyanide is added as a depressant in the froth floatation process when the ore contains a mixture of $ {ZnS}$ and $ {PbS}$. This is because
Standard molar enthalpies of formation of $ {CaCO_{3(s)} CaO_{(s)}}$ and $ {CO_{2(g)}}$ are $ {-1206.92\, kJ \, mol^{-1}, -635.09\, kJ\, mol^{-1}}$ and $ {-393.51\, kJ\, mol^{-1}}$ respectively. The $\Delta H_r$ for decomposition of $ {CaCO_{3(s)}}$ is
The number of proper subsets of a set having $n + 1$ elements is
In an inelastic collision, which of the following is true?
The reaction, $ { CH_3CH_2I + KOH_{(aq)} -> CH_3CH_2OH + KI}$ is classified as
The dimensions of energy and torque respectively are
The universal gas law $\left( \frac{PV }{T} = { constant} \right)$ is applicable to
An endothermic reaction, $A \to B$ has an activation energy as $x\, kJ/mol$. If the energy change of the reaction is $y\, kJ$, the activation energy of the reverse reaction is
Consider an experiment $E$ in which a box contains $10$ identical tickets numbered $1$ to $10$ and $2$ tickets are drawn at random from the box. What is the probability that both the tickets have even numbers on them?
The value of $\int^2_{-2}(ax^3+bx +c)dx$ depends on the
Let $x$ be a number which exceeds its square by the greatest possible quantity, then $x$ =
$\int^{\frac{\pi}{2}}_0 \log(\tan\,x)dx=$
If the coefficients of $x^5$ and $x^6$ in $\left(2+\frac{x}{3}\right)^{n}$ are equal, then $n$ is
The value of $\frac{\tan 330^{\circ} \sec 420^{\circ} \sin 300^{\circ}}{\tan 135^{\circ} \sin 210^{\circ} \sec 315^{\circ} } $ is equal to
A hospital uses an ultrasonic scanner to locate tumors in a tissue. The operating frequency of the scanner is $4.2 \, MHz$. The speed of sound in a tissue is $1.7 \, km \, s^{-1}$. The wavelength of sound in the tissue
A policeman on duty detects a drop of $15 \%$ in the pitch of the horn of a motor car as it crosses him. If the velocity of sound is $330 \, m \, s^{-1}$ , calculate the speed of the car.
Two boys are standing at ends $A$ and $B$ of a ground where $AB = 200\, m$. The boy at B starts running in a direction perpendicular to $AB$ with a speed of $6\, m \,s^{-1}$? The boy at A starts simultaneously with a velocity of $10 \, m \, s^{-1}$ and catches the other at time t where the time $t$ is
The $TV$ signals have a bandwidth of $3.7\, MHz$. The number of $TV$ channels that can be accommodated with a band of $3700 \,GHz$ is
A pump on the ground floor of a building can pump up water to fill the tank of $30\, m^3$ in $15\,min$. If the tank is $40\,m$ above the ground, and the efficiency of the pump is $30\,%$, the power consumed by the pump is $(g = 10 \, m \, s^{-2})$
The increase in the height of the tower of height $200\,m$ to get its coverage range tripled is