JEE Main 2025 Question Paper (29-Jan-2025) (Shift 2)

Question 1

The calculated spin-only magnetic moments of ${\mathrm{K}}_{3}[\mathrm{Fe}(\mathrm{OH})_{6}]$ and ${\mathrm{K}}_{4}[\mathrm{Fe}(\mathrm{OH})_{6}]$ respectively are:

Accepted Answer

5.92 and 4.90 B.M.

Answer

4.90 and 4.90 B.M.

Answer

3.87 and 4.90 B.M.

Answer

4.90 and 5.92 B.M.

Question 2

For hydrogen-like species, which of the following graphs provides the most appropriate representation of the $ E $ vs. $ Z $ plot for a constant $ n $?
[ $ E $: Energy of the stationary state, $ Z $: atomic number, $ n $: principal quantum number ]

Accepted Answer

""

Answer

Answer

Answer

Question 3

Given below are two statements:Statement (I): In partition chromatography, the stationary phase is a thin film of liquid present on the inert support.Statement (II): In paper chromatography, the material of the paper acts as the stationary phase.In the light of the above statements, choose the correct answer from the options given below:

Accepted Answer

Statement I is true but Statement II is false

Answer

Both Statement I and Statement II are false

Answer

Both Statement I and Statement II are true

Answer

Statement I is false but Statement II is true

Question 4

Identify the essential amino acids from below :(A) Valine(B) Proline(C) Lysine(D) Threonine(E) TyrosineChoose the correct answer from the options given below :