Question

Mixture X = 0.02 mole of [Co(NH₃)₅ SO₄ ]Br and 0.02 mole of[Co(NH₃)₅ Br]SO₄ was prepared in 2 L of Solution

1 L of mixture X +  excess AgNO₃ → Y

1 L of mixture X + excess BaCl₂ → Z

Number of mole of Y and Z are

(a) 0.01, 0.01

(b) 0.02, 0.01

(c) 0.01,0.02

(d) 0.02, 0.02

Answer 1

Correct option  (a) 0.01, 0.01

• In 2 L solution, there are 0.02 mol Br^- ions and 0.02 mole SO₄^2-
• :. 1 L of mixture X contains 0.01 mol Br ^– and 0.01 mol SO₄^2- ions. 
• Hence, Y =  0.01 mol Ag Br
• Z = 0.01 mol BaSO₄