Consider a mixture ' X ' which is made by dissolving 0.4 mol of [Co(NH_ 3 )_ 5 SO_ 4 ] Br and 0.4 mol of [Co(NH_ 3 )_ 5 Br] SO_ 4 in water to make 4 L of solution. When 2 L of mixture ' X ' is allowed to react with

JEE Main 202624 JanuaryMorning Shift

JEE Main 2026 · 24 January · Morning Shift · Chemistry · Coordination Compounds

Consider a mixture ' X ' which is made by dissolving 0.4 mol of...

Consider a mixture ' X ' which is made by dissolving 0.4 mol of

\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{SO}_{4}\right] \mathrm{Br} and 0.4 mol of \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Br}\right] \mathrm{SO}_{4}

in water to make 4 L of solution. When 2 L of mixture ' X ' is allowed to react with excess of

\mathrm{AgNO}_{3}

, it forms precipitate ' Y '. The rest 2 L of mixture ' X ' reacts with excess

\mathrm{BaCl}_{2}

to form precipitate ' Z '. Which of the following statements is CORRECT?

B. 0.2 mol of ' $Z$ ' is formed.

0.4 mol

[Co(NH_3)_5SO_4]Br

+ 0.4 mol

[Co(NH_3)_5Br]SO_4

are present in 4 lit. solution.
2 lit. of mixture will contain 0.2 mol of each complex.
2 lit. mixture on reaction with excess

AgNO_3

, 0.2 mole

AgBr

will be formed (Y).
2 lit. mixture on reaction with excess

BaCl_2

, 0.2 mole

BaSO_4

will be formed (Z).