S Block Elements Question 30
Question: The reaction of $ Na_2S_2O_3 $ with iodine gives
[CPMT 1971, 80, 81; DPMT 1983, 90; MP PMT 1985; EAMCET 1990; BHU 1980]
Options:
A) Sodium sulphide
B) Sodium sulphite
C) Sodium sulphate
D) Sodium tetrathionate
Show Answer
Answer:
Correct Answer: D
Solution:
$ 2Na_2S_2O_3+I_2\to Na_2S_4O_8+2NaI $ .