P-Block Elements Ques 99

Question: Colour of iodine solution is disappeared by shaking it with aqueous solution of

[CPMT 1979, 81; MP PET/PMT 1988; MP PMT 1986; RPMT 1997, 2002]

Options:

A) $ H_2SO_4 $

B) $ Na_2S $

C) $ Na_2S_2O_3 $

D) $ Na_2SO_4 $

Show Answer

Answer:

Correct Answer: C

Solution:

$ 2Na_2S_2O_3+I_2\to 2NaI+Na_2S_4O_6 $



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