List of top Chemistry Questions asked in JEE Main

The enthalpy change for the adsorption process and micelle for mation respectively are

Ion having highest hydration enthalpy among the given alkaline earth metal ions is:

In which form does \(BeCl_{2}\) exist in the solid state, vapor state and high temperature?
(1) Polymeric, Dimeric, Monomeric
(2) Dimeric, Polymeric, Monomeric
(3) Monomeric, Dimeric, Polymeric
(4) Polymeric, Monomeric, Dimeric

The product , which is not obtained during the electrolysis of brine solution is ____ .

Out of the following which has maximum CFSE? ( consider with sign)

During bleeding from cut \(FeCl_3\) is used to stop bleeding as

Compounds of Xenon have one electron pair on central atom :

Identify the correct statement about the compound GaAIC₁₄

An unknown organic compound is heated with fuming \(HNO_3\). The reaction mixture is treated with aq \(BaCl_2\) solution which gives white precipitate. Identify the unknown organic compound.

Which of the following can be represented as a meridional isomer?

Total spin only magnetic moment of the ion [Mn(SCN)₆]^x– is 5.92 B.M. Find out the value of x.

For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has ______ number of unpaired electrons.

Which of the following acts as a stabilizer in the decomposition of H₂O₂?

Which of the following elements is most reactive?

Select the correct order of electronegativity of the elements: B, C, At, S

Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R).
Assertion (A): Acidic nature follows the order:

Reason (R): F is a better electron-withdrawing group than Cl
In the light of the above statements, write the detailed answer: