List of top Questions asked in KEAM

Which of the following is diamagnetic?
Choose the incorrect statement:
Chloro benzene and acetyl chloride react with anhydrous AlCl\(_3\), to form 4-chloroacetophenone. The reaction is an example of:
Acetone can be converted to 2-methylpropan-2-ol using:
Which of the following have a complete octet?
Which among the following shows -R effect?
Which of the following is an extensive property?
The correct order of boiling point:
CH\(_3\)-CH\(_2\)-CH\(_2\)-CH\(_2\)-NH\(_2\), CH\(_3\)-CH\(_2\)-NH-CH\(_2\)-CH\(_3\), CH\(_3\)-CH\(_2\)-N(CH\(_3\))\(_2\)
Which one of the series of hydrogen spectrum is in the visible region?
Which of the following is a non-polar molecule?
In the reaction \( 3Mg + N_2 \rightarrow Mg_3N_2 \), the oxidation number of Mg changes is:
Which of the following is non-aromatic?
Given the following information: \[ n(A \times B) = 160, \quad n(B \times C) = 80, \quad n(A \times C) = 240 \] Find \( n(A) \).
Which of the following is the set of neutral oxides? (a) \( \text{Al}_2\text{O}_3, \text{Cl}_2\text{O}_7 \), b) \( \text{N}_2\text{O}, \text{CO} \)
Find the standard deviation of the numbers: -3, 0, 3, 8.
If \(x + z = 2y\) and \(y = \frac{\pi}{4}\), what is \( \tan x \cdot \tan y \cdot \tan z \)?
In a Carnot engine, efficiency is dependent on ________?
What is the value of n when \( t_n = \frac{n(n+6)}{n+4} \) and \( t_n = 5 \)?
If \( 5 \sin^{-1} \alpha + 3 \cos^{-1} \alpha = \pi \), then \( \alpha = ? \)
Find the value of \( Z^2 \) if \( Z = \left( 1 + \frac{1}{i} \right) \).
The ratio of the angular speed of the minute hand to the second hand of a watch is?
Brewster's angle should lie between?
Number of degrees of freedom for the monoatomic gas molecule is?
After a collision, two particles move together, then the collision is?
Which of the following statement is true?