List of top Chemistry Questions asked in KEAM

P\(_4\) \(\rightarrow\) PH\(_3\) + H\(_2\)PO\(_2\)
Oxidation state of phosphorus change from -------- to -------- respectively.
There is 40 % C, 67% H2, find the empirical formula
Number of C−C, C−H, C=C in But-2-ene-1-yne respectively
Which of the following have minimum and maximum threshold energy K, Na, Mg, Li?
Energy of \(2h\nu_0\) fall on a metal of work function \(h\nu_0\) cause velocity of \(v_1\), when \(5h\nu_0\) fall velocity ratio of \(v_1/v_2\)
Which 3d series of element has least enthalpy of atomization?
IUPAC name of Element number 105?
What is 1-chlorocyclohexene?
What is the IUPAC name of Mesityl oxide?
Decreasing order basic strength
The KE of particle of mass \(1 \times 10^{-31}\) Kg and the de Broglie wavelength 63 nm (h = \(6.3 \times 10^{-34}\))
Which of the following has the least atomic radius?
Which one of the following elements is represented as Eka-silicon in Mendeleev's periodic table?
Uncertainty principle is valid for:
No two electrons in an atom can have the same set of quantum numbers. This is known as:
The number of electrons in one mole of methane (CH\(_4\)) is:
The elemental analysis of an organic compound gave:
C: 38.71%, H: 9.67%, O: 51.67%. What is the empirical formula of the compound?
On heating an aldehyde with Fehling's reagent, a reddish-brown precipitate is obtained due to the formation of:
Compound 'A' is obtained by the reaction of benzyl chloride with magnesium metal in dry ether followed by treatment with water. What is the compound 'A'?
The major product obtained in the dehydration of ethanol in the presence of \( \text{H}_2\text{SO}_4 \) at 413 K is:
Which of the following compounds has the highest boiling point?
The base that is not present in DNA is ________.
The amine with the highest $pK_{b}$ value is ________.
Benzoyl chloride can be converted to benzaldehyde by ________.
When propanone is treated with $Zn/Hg$ and Conc. HCl, propane is formed. This reaction is known as ________.