Consider the following list of reagents:
Acidified $K_{2} {C r}_{2} O_{7}$ , alkaline $K M n O_{4}, C u {S O}_{4}, H_{2} O_{2}, {C l}_{2}, O_{2}, F e {C l}_{2}, H {N O}_{3}$ and ${N a}_{2} S_{2} O_{3}$ . The total number of reagents that can oxidise aqueous iodide to iodine is:

Open in App

Solution

Answer is 5
$K_{2} C r_{2} O_{7} + I^{-} + H^{+} \to I_{2}$
$C u S O_{4} + I^{-} \to I_{2}$
$H_{2} O_{2} + I^{-} \to I_{2}$
$C l_{2} + I^{-} \to I_{2}$
$H N O_{3} + I^{-} \to I_{2}$

Suggest Corrections

Similar questions

Acidified K_{2} C r_{2} O_{7}, Alkanline K M n O_{4}, C u S O_{4}, H_{2} O_{2}, C l_{2}, O_{3}, F e C l_{3}, H N O_{3}, a n d N a_{2} S_{2} O_{3}

K_{2} C r_{2} O_{7}

K M n O_{4}

C u S O_{4}

H_{2} O_{2}

C l_{2}

O_{3}

F e C l_{3}

N a_{2} S_{2} O_{3}

K_{2} C r_{2} O_{7}

K M n O_{4}, C u S O_{4}, H_{2} O_{2}, C l_{2}, O_{3}, F e C l_{3}, H N O_{3}

N a_{2} S_{2} O_{3}

Acidified K_{2} C r_{2} O_{7}, Alkanline K M n O_{4}, C u S O_{4}, H_{2} O_{2}, C l_{2}, O_{3}, F e C l_{3}, H N O_{3}, a n d N a_{2} S_{2} O_{3}

C u^{2 +}, c o n c . H_{2} S O_{4}, C l_{2}, (H N O_{2} + C H_{3} C O O H), A g N O_{3}

Join BYJU'S Learning Program