Question

Following are the statements regarding $Hypo$
i) Sodium thiosulphate pentahydrate is called hypo.
ii) Hypo forms stable super saturated solution.
iii) Sulphur atoms in hypo molecule has -2 and +6 oxidation states.

• A. Both (i) and (ii) are correct
• B. Both (i) and (iii) are correct
• C. Only (iii) is correct
• D. All are correct

Answer 1

The correct option is D All are correct

$S_2{O}_3^{2-}$

i) Hypo is $N{a}_2{S}_2{O}_3.5H_{2}O$.

ii) Hypo forms stable super saturated solution.

iii) Central S atom is in +6 state while another S atom at one end is in -2 oxidation state.

Option D is correct.