0.5 g bleaching powder was suspended in water and excess KI is added. On acidifying with dil. H_(2)SO_(4), I_(2) was liberated which required 50 mL of N//10 hypo (Na_(2)S_(2)O_(3). 5H_(2)O) in presence of starch. The reactions involved are : I. CaOCl_(2)+H_(2)SO_(4) to CaSO_(4) to CaSO_(4)+H_(2)O +Cl_(2) II. 2KI+Cl_(2) to 2KCl+I_(2) III. 2Na_(2)S_(2)O_(3)+I_(2) to Na_(2)S_(4)O_(6)+2NaI Percentage of available chlorine in bleaching powder is :

0.5 g bleaching powder was suspended in water and excess KI is added.

1.	0.5 g bleaching powder was suspended in water and excess KI is added. On acidifying with dil. H_(2)SO_(4), I_(2) was liberated which required 50 mL of N//10 hypo (Na_(2)S_(2)O_(3). 5H_(2)O) in presence of starch. The reactions involved are : I. CaOCl_(2)+H_(2)SO_(4) to CaSO_(4) to CaSO_(4)+H_(2)O +Cl_(2) II. 2KI+Cl_(2) to 2KCl+I_(2) III. 2Na_(2)S_(2)O_(3)+I_(2) to Na_(2)S_(4)O_(6)+2NaI Percentage of available chlorine in bleaching powder is :
Answer» <html><body><p>`35.5%`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/71-334184" style="font-weight:bold;" target="_blank" title="Click to know more about 71">71</a>%`<br/>`17.25%`<br/>`<a href="https://interviewquestions.tuteehub.com/tag/50-322056" style="font-weight:bold;" target="_blank" title="Click to know more about 50">50</a>%`</p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :N//A</body></html>