Which of the following statement is correct?
In peroxosulphuric acid $(H_{2} S O_{5})$ sulphur is in +8 oxidation state
$S - S$ bond is present in $H_{2} S_{2} O_{6}$
Copper powder along with $A l_{2} O_{3}$ and $K_{2} O$ is used as a catalyst in the preparation of $N H_{3}$ by Haber's process
Change in enthalpy is positive for the preparation of $S O_{3}$ by catalytic oxidation of $S O_{2}$

Question

Which of the following statement is correct?
In peroxosulphuric acid $(H_{2} S O_{5})$ sulphur is in +8 oxidation state
$S - S$ bond is present in $H_{2} S_{2} O_{6}$
Copper powder along with $A l_{2} O_{3}$ and $K_{2} O$ is used as a catalyst in the preparation of $N H_{3}$ by Haber's process
Change in enthalpy is positive for the preparation of $S O_{3}$ by catalytic oxidation of $S O_{2}$

Toppr Admin · Accepted Answer

S-x2212-S bond is present in H2S2O6-xA0-In H2SO5- the oxidation number of O is -6 as two O are having peroxide bond-Preparation of SO3 by catalytic oxidation of SO2 is exothermic-

S−S bond is present in H2S2O6. In H2SO5, the oxidation number of O is +6 as two O are having peroxide bond.Preparation of SO3 by catalytic oxidation of SO2 is exothermic.

$S - S$ bond is present in $H_{2} S_{2} O_{6}$ . In $H_{2} S O_{5}$ , the oxidation number of $O$ is +6 as two $O$ are having peroxide bond.
Preparation of $S O_{3}$ by catalytic oxidation of $S O_{2}$ is exothermic.