D-And F-Block Elements Ques 448
Question: Excess of KI reacts with $ CuSO_4 $ solution and then $ Na_2S_2O_3 $ solution is added to it. Which of the statements is incorred for this reaction-
Options:
A) Evolved $ I_2 $ is reduced
B) $ Cu_2I_2 $ is formed
C) $ Na_2S_2O_3 $ is oxidized
D) $ CuI_2 $ is formed
Show Answer
Answer:
Correct Answer: B
Solution:
$ 2CuSO_4+4KI\to 2K_2SO_4+Cu_2I_2+I_2 $
$ 2Na_2S_2O_3+I_2\to Na_2S_4O_6+2NaI $
