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1L,0.02M solution of [ Co ( NH_3)_5 SO_4] Br is mixed with 1L,0.02M solution of [ Co ( NH_3)_5 Br] SO_4. The resulting solution is divided into two…

JEE Main 2023 — Chemistry Inorganic Chemistry

2023mcqhard

1L,0.02M1L,0.02M1L,0.02M solution of [Co(NH3)5SO4]Br[\mathrm{Co}{({\mathrm{NH}}_{3})}_{5}{\mathrm{SO}}_{4}]\mathrm{Br}[Co(NH3​)5​SO4​]Br is mixed with 1L,0.02M1L,0.02M1L,0.02M solution of [Co(NH3)5Br]SO4[\mathrm{Co}{({\mathrm{NH}}_{3})}_{5}\mathrm{Br}]{\mathrm{SO}}_{4}[Co(NH3​)5​Br]SO4​. The resulting solution is divided into two equal parts (X)(X)(X) and treated with excess AgNO3{\mathrm{AgNO}}_{3}AgNO3​ solution and BaCl2{\mathrm{BaCl}}_{2}BaCl2​ solution respectively as shown below:

1L1L1L Solution (X)+AgNO3(X)+{\mathrm{AgNO}}_{3}(X)+AgNO3​ solution (excess) →Y\rightarrow Y→Y

1L1L1L Solution (X)+BaCl2(X)+{\mathrm{BaCl}}_{2}(X)+BaCl2​ solution (excess) →Z\rightarrow Z→Z

The number of moles of YYY and ZZZ respectively are

Official previous-year question

Held on 30 Jan 2023 · Verified 6 Jul 2026.

Options

  1. A

    0.02,0.020.02,0.020.02,0.02

  2. B

    0.01,0.010.01,0.010.01,0.01

  3. C

    0.02,0.010.02,0.010.02,0.01

  4. D

    0.01,0.020.01,0.020.01,0.02

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