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The reaction of $ \mathrm{K_3[Fe(CN)_6]} $ with freshly prepared $ \mathrm{FeSO_4} $ solution produces a dark blue precipitate called Turnbull’s blue. Reaction of $ \mathrm{K_4[Fe(CN)_6]} $ with the $ \mathrm{FeSO_4} $ solution in complete absence of air produces a white precipitate X, which turns blue in air. Mixing the $ \mathrm{FeSO_4} $ solution with $ \mathrm{NaNO_3} $, followed by a slow addition of concentrated $ \mathrm{H_2SO_4} $ through the side of the test tube produces a brown ring.
Among the following, the brown ring is due to the formation of:

During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to:

PARAGRAPH – 2
When potassium iodide is added to an aqueous solution of potassium ferricyanide, a reversible reaction is observed in which a complex P is formed. In a strong acidic medium, the equilibrium shifts completely towards P. Addition of zinc chloride to P in a slightly acidic medium results in a sparingly soluble complex Q.
The number of moles of potassium iodide required to produce two moles of P is _____.

A mixture of two salts is used to prepare a solution $ S $, which gives the following results:
$ \text{White precipitate(s) only} \xleftarrow[\text{Room temperature}]{\text{Dilute NaOH (aq.)}} \begin{matrix} \text{S} \\ \text{(aq. solution} \\ \text{of the salts)} \end{matrix} \xrightarrow[\text{Room temperature}]{\text{Dilute HCl (aq.)}} \text{White precipitate(s) only} $
The correct option(s) for the salt mixture is(are):

Reaction of $ x $ $ \text{g} $ of $ \text{Sn} $ with $ \text{HCl} $ quantitatively produced a salt. Entire amount of the salt reacted with $ y $ $ \text{g} $ of nitrobenzene in the presence of required amount of $ \text{HCl} $ to produce $ 1.29 \, \text{g} $ of an organic salt (quantitatively).
(Use Molar masses (in $ \text{g mol}^{-1} $) of H, C, N, O, Cl and Sn as $ 1 $, $ 12 $, $ 14 $, $ 16 $, $ 35 $ and $ 119 $, respectively)
The value of $ y $ is ____________.

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

List-I	List-II
P. Passing $ \mathrm{H_2S} $ in the presence of $ \mathrm{NH_4OH} $	1. $ \mathrm{Cu^{2+}} $
Q. $ \mathrm{(NH_4)_2CO_3} $ in the presence of $ \mathrm{NH_4OH} $	2. $ \mathrm{Al^{3+}} $
R. $ \mathrm{NH_4OH} $ in the presence of $ \mathrm{NH_4Cl} $	3. $ \mathrm{Mn^{2+}} $
S. Passing $ \mathrm{H_2S} $ in the presence of dilute $ \mathrm{HCl} $	4. $ \mathrm{Ba^{2+}} $
	5. $ \mathrm{Mg^{2+}} $

In the scheme given below, $ X $ and $ Y $, respectively, are:

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JEE Advanced 2023 Paper - 1

In the scheme given below, $ X $ and $ Y $, respectively, are:

JEE MainsJEE AdvanceBITSATJEE Advance | PYQ

JEE Mains JEE Advance BITSAT
JEE Advance | PYQ