List of top Chemistry Questions asked in JEE Main

At ${90}^{\circ }C$, pure water has $\left[H_3{O}^{+}\right]={10}^{-6}m$ on the value of $k_w$ at this temperature is:

Which of the following will be oxidized by \(HIO_4\)?

Two particles A and B are in motion and the wavelength of A is 5 × 10^-8 m. The wavelength of B, so that its momentum is double that of A, will be:

In the reaction:$BC{l}_3+P{H}_3\rightleftharpoons C{l}_{3}B·P{H}_3$ Lewis base is:

Find out the work done in the following process.

Decreasing order of the field strength of the following ligands will be: CO, CN^-, Cl^-, H₂O

Which of the following is colorless?

Consider the following compound.

Correct order of their basicity is:

Arrange the following in increasing order of acidity.

Which of the following orbitals has the highest energy?

Number of ambidentate nucleophiles among the following is:
CN^-, SCN^- NO₂^-, CH₃COO^-, C₂0₄^2-, NH₂^-, SO₄^2-

Equal volume of 1 M HCI and 1 M H2SO4 neutralized by dil. NaOH and heat released is x and y kcal respectively, then which is correct?

Consider the following electronic configuration:
Cu²⁺ = [Ar] 3d⁴4s⁰
Cu⁺ = [Ar] 3d¹⁰4s⁰
Which option is correct?

Which of the following has sp² hybridisation?

For the reaction:

Product (P) is

Molecular orbital σ* represents:

How many carbon atoms are there in a molecule of tyrosine?

In the test for phosphorus using ammonium molybdate, yellow precipitate of compound (X) is obtained. What is the oxidation state of molybdenum in (X)?

S-I: Blood is a buffer solution, whose pH is maintained at 7.4 by an acidic buffer. 
S-II: pH is maintained by HCO₃^-  and   H₂CO₃

Assertion: Kjeldahl method is not used for pyridine.
Reason: Nitrogen of pyridine does not change to ammonium sulphate under these conditions.

Which of the following is correct?

Which of the following are aromatic compounds?

The total number of compounds having Bond order 2 among the following are: F₂, N₂, Ne₂, O₂, Li₂, Be₂, C₂

Consider the following compound:

What is the IUPAC nomenclature of the compound?

Select the correct options:
Statement 1: Benzene sulphonyl chloride reacts with 1°, 2° and 3° amines.
Statement 2: All products of the reaction above are soluble in NaOH.