List of top Questions asked in COMEDK UGET

At 300 K, the half-life period of a gaseous reaction at an initial pressure of 40 kPa is 350 s. When pressure is 20 kPa, the half-life period is 175 s. What is the order of the reaction?
If 2 moles of $ C_6H_6 $ (g) are completely burnt 4100 kJ of heat is liberated. If $ \Delta H^\circ $ for $ CO_2 (g) $ and $ H_2O (l) $ are -410 kJ and -285 kJ per mole respectively then the heat of formation of $ C_6H_6 (g) $ is
Abnormal colligative properties are observed only when the dissolved non-volatile solute in a given dilute solution
Aqueous CuSO$_4$ changes its colour from sky blue to deep blue on addition of NH$_3$ because

Identify A, B, and C in the following reactions:

For a reaction, $ 2A + B \to \text{products} $, if concentration of B is kept constant and concentration of A is doubled, then rate of reaction is
For an adiabatic change in a system, the condition which is applicable is
In dilute alkaline solution, $ \text{MnO}_4^- $ changes to

Which of the following complex show optical isomerism?
$(i) \text{cis} - [\text{COCl}(\text{en})_2 (\text{NH}_3)]^{2+} $ 
$(ii) \text{cis} - [\text{CrCl}_2(\text{ox})_2]^{3-}$ 
$(iii) \text{cis} - [\text{CO}(\text{en})_2\text{Cl}_2]\text{Cl}$ 
$(iv) \text{cis} - [\text{CO}(\text{NH}_3)_4 \text{Cl}_2]^+$

The following reaction takes place:

Mohr's salt has the formula

The product P in the reaction,

Gabriel's synthesis is used frequently for the preparation of which of the following? 

Acetophenone when reacted with a base, $ C_6H_5ONa $, yields a stable compound which has the structure

Product of the following reaction is

Which of the following hexoses will form the same osazone when treated with excess phenyl hydrazine?
The total number of terms in the expansion of $ (x + y)^{60} + (x - y)^{60} $ is
3 and 5 are intercepts of a line $L = 0$, then the distance of $L = 0$ from $(3, 7)$ is
The slope of lines which makes an angle $60^\circ$ with the line $y - 3x + 18 = 0$ is
The distance of the point (3, 4) from the line $3x + 2y + 7 = 0$ measured along the line parallel to $y - 2x + 7 = 0$ is equal to
Let the equation of pair of lines $ y = m_1x $ and $ y = m_2x $ be written as $ (y - m_1x)(y - m_2x) = 0 $. Then, the equation of the pair of the angle bisector of the line $ 3y^2 - 5xy - 2x^2 = 0 $ is
A polygon of $ n $ sides has 105 diagonals, then $ n $ is equal to
The total number of numbers greater than 1000 but less than 4000 that can be formed using 0, 2, 3, 4 (using repetition allowed) are
There are 10 points in a plane out of which 4 points are collinear. How many straight lines can be drawn by joining any two of them?
If $ \left( \frac{3}{2} + i \frac{\sqrt{3}}{2} \right)^{50} = 3^{25}(x + iy) $, where $x$ and $y$ are real, then the ordered pair $(2x, 2y)$ is