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Which of the following oxoacid of sulphur has -O-O- linkage?
 

Option: 1

H_{2}S_{2}O_{7} pyrosulphuric acid


Option: 2

H_{2}SO_{3}  sulphurous acid


Option: 3

H_{2}SO_{4} sulphuric acid 

 


Option: 4

H_{2}S_{2}O_{8}  peroxodisulphuric acid


Answers (1)

best_answer

To find an oxyacid that has peroxy linkage - If the calculated oxidation state is more than that of the maximum oxidation state, then the oxyacid contains peroxy linkage, 

The calculated oxidation state of S in, 

H_2S_2O_7\quad O.S.=+6

H_2SO_3\quad O.S.=+4

H_2SO_4\quad O.S.=+6

H_2S_2O_8\quad O.S.=+7

H_{2}S_{2}O_{8}, peroxodisulphuric acid has -O-O- linkage. 

Therefore, the correct option is (4).

 

Posted by

mansi

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