JEE Advanced · Chemistry · 9. Redox Reactions
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.
Question :
Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is
- A \(\mathrm{Cl}_{2} \mathrm{O}\)
- B \(\mathrm{Cl}_{2} \mathrm{O}_{7}\)
- C \(\mathrm{ClO}_{2}\)
- D \(\mathrm{Cl}_{2} \mathrm{O}_{6}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Cl}_{2} \mathrm{O}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Ca}(\mathrm{OCl}) \mathrm{Cl} \longrightarrow \mathrm{Ca}^{2+}+-\mathrm{OCl}+\mathrm{Cl}^{-}\)
-OCl (Hypochlorite ion) is anion of the acid HOCl which on dehydration gives \(\mathrm{Cl}_{2} \mathrm{O}\).
\(2 \mathrm{HOCl} \longrightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2} \mathrm{O}\)
-OCl (Hypochlorite ion) is anion of the acid HOCl which on dehydration gives \(\mathrm{Cl}_{2} \mathrm{O}\).
\(2 \mathrm{HOCl} \longrightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2} \mathrm{O}\)
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