Bleaching powder and bleach solution are produced on a large scale and used in several household products. The effectiveness of bleach solution is often measured by iodometry. Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is (a) Cl 2 O (b) Cl 2 O 7 (c) ClO 2 (d) Cl 2 O 6

Question

Bleaching powder and bleach solution are produced on a large scale and used in several household products. The effectiveness of bleach solution is often measured by iodometry. Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is (a) Cl 2 O (b) Cl 2 O 7 (c) ClO 2 (d) Cl 2 O 6 (A) Cl2O (B) Cl2O7 (C) ClO2 (D) Cl2O6

Tardigrade Admin · Accepted Answer

Bleaching powder is Ca(OCl)Cl. Therefore, the oxoacid whose salt is present in bleaching powder is HOCl. Anhydride of HOCl is Cl2O as 2 HOCl longrightarrow Cl2O + H2O NOTE The oxidation number of element in anhydride and oxoacid remains the same.

$C l_{2} O$

$C l_{2} O_{7}$

$Cl O_{2}$

$C l_{2} O_{6}$

Bleaching powder is $C a (OCl) Cl$ . Therefore, the oxoacid whose salt is present in bleaching powder is $H OCl$ .
Anhydride of $H OCl$ is $C l_{2} O$ as
$2 H OCl ⟶ C l_{2} O + H_{2} O$
NOTE The oxidation number of element in anhydride and oxoacid
remains the same.

Cl2​O

Cl2​O7​

ClO2​

Cl2​O6​

Bleaching powder is Ca(OCl)Cl. Therefore, the oxoacid whose salt is present in bleaching powder is HOCl. Anhydride of HOCl is Cl2​O as 2HOCl⟶Cl2​O+H2​O NOTE The oxidation number of element in anhydride and oxoacid remains the same.

$C l_{2} O$

$C l_{2} O_{7}$

$Cl O_{2}$

$C l_{2} O_{6}$

Bleaching powder is $C a (OCl) Cl$ . Therefore, the oxoacid whose salt is present in bleaching powder is $H OCl$ .
Anhydride of $H OCl$ is $C l_{2} O$ as
$2 H OCl ⟶ C l_{2} O + H_{2} O$
NOTE The oxidation number of element in anhydride and oxoacid
remains the same.