JEE Advanced · 2025 · 18 May 2025 · Paper 2 · Practical and Analytical Chemistry

Consider the following reaction sequence in which J, K, L and M are the major products.

Given:
Atomic mass (in amu): H : 1, C : 12, N : 14, O : 16, S : 32, Br : 80, Ba : 137

The volume of 1 M aqueous ${\text{H}}_2{\text{SO}}_4$ required to completely neutralize the ammonia evolved …

Consider the following reaction sequence in which J, K, L and M are the major products.

Given:
Atomic mass (in amu): H : 1, C : 12, N : 14, O : 16, S : 32, Br : 80, Ba : 137

In sulphur estimation by Carius method, the amount of ${\text{BaSO}}_4$ formed from 3.79 g of $\mathbf{M}$ …

The monomer $(\mathbf{X})$ involved in the synthesis of Nylon 6,6 gives positive carbylamine test. If 10 moles of $\mathbf{X}$ are analyzed using Dumas method, the amount (in grams) of nitrogen gas evolved is ____.

Use: Atomic mass of N (in amu) = 14

The correct match of the group reagents in List-I for precipitating the metal ion given in List-II from solutions, is
| …

The treatment of an aqueous solution of 3.74 g of $\mathrm{Cu}{\left({\mathrm{NO}}_3\right)}_2$ with excess KI results in a brown solution along with the formation of a precipitate. Passing ${\mathrm{H}}_2\mathrm{S}$ through this brown solution gives another precipitate X. …

Consider the following reaction.

On estimation of bromine in 1.00 g of $\mathbf{R}$ using Carius method, the amount of AgBr formed (in g ) is ____.

[Given : Atomic mass of $\mathrm{H}=1,\mathrm{C}=12,\mathrm{O}=16,\mathrm{P}=31,\mathrm{Br}=80,\mathrm{Ag}=108$ ]