P-Block Elements Ques 86
Question: When thiosulphate ion is oxidised by iodine, which one of the following ion is produced
[CPMT 1989; AFMC 1990; CBSE PMT 1996]
Options:
A) $ SO_3^{2-} $
B) $ SO_4^{2-} $
C) $ S_4O_6^{2-} $ (Tetrathionate)
D) $ S_2O_6^{2-} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ 2Na_2S_2O_3+I_2\to 2NaI+Na_2S_4O_6 $
