Consider the following list of reagents: Acidified K _ 2 C r _ 2 O _ 7 , alkaline KMn O _ 4 , CuS O _ 4 , H _ 2 O _ 2 , C l _ 2 , O _ 3 , FeC l _ 3 , HN O _ 3 and N a _ 2 S _ 2 O _ 3 . The total number of reagents that

Question

Quantrex Academy · Accepted Answer

Correct answer: 7

K _ 2 C r _ 2 O _ 7 , CuS O _ 4 , H _ 2 O _ 2 , C l _ 2 , O _ 3 , FeC l _ 3 , HN O _ 3 K _ 2 C r _ 2 O _ 7 + 7 H _ 2 S O _ 4 + 6KI → 4 K _ 2 S O _ 4 + C r _ 2 (S O _ 4 ) _ 3 + 3 I _ 2 + 7 H _ 2 O 2CuS O _ 4 + 4KI → C u _ 2 I _ 2 + I _ 2 + 2 K _ 2 S O _ 4 H _ 2 O _ 2 + 2KI → I _ 2 + 2KOH C l _ 2 + 2KI → 2KCl + I _ 2 O _ 3 + 2KI + H _ 2 O → 2KOH + I _ 2 + O _ 2 2FeC l _ 3 + 2KI → 2FeC l _ 2 + I _ 2 + 2KCl 8HN O _ 3 + 6KI → 6KN O _ 3 + 2NO + 4 H _ 2 O + 3 I _ 2 2KMn O _ 4 + KI + H _ 2 O → KI O _ 3 + 2Mn O _ 2 + 2KOH

Consider the following list of reagents: Acidified K _ 2 C r _ 2 O...

Correct answer

Step-by-step solution

More from Redox Reactions