NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice
In the following reaction sequence in aqueous solution, the species X, Y and Z, respectively, are S 2 O 3 2 - → A g + X clear solution → A g + Y white precipitate → with time Z black precipitate
Options
- A[ A g ( S 2 O 3 ) 2 ] 3 - , A g 2 S 2 O 3 , A g 2 S
- B[ A g ( S 2 O 3 ) 3 ] 5 - , A g 2 S O 3 , A g 2 S
- C[ A g ( S O 3 ) 2 ] 3 - , A g 2 S 2 O 3 , A g
- D[ A g ( S O 3 ) 3 ] 3 - , A g 2 S O 4 , A g
Correct answer
A. [ A g ( S 2 O 3 ) 2 ] 3 - , A g 2 S 2 O 3 , A g 2 S
Step-by-step solution
S 2 O 3 2 - → A g + [ A g ( S 2 O 3 ) 2 ] 3 - X → A g + A g 2 S 2 O 3 Y → A g 2 S Z black ppt