Total number of species from the following which can undergo disproportionation reaction

Question

Canvas Classes · Accepted Answer

Disproportionation requires the element to be in an intermediate oxidation state (can be both oxidised and reduced).

Step 1 — Check each species:

| Species | Element | OS | Can disproportionate? | Reason |
|---|---|---|---|---|
|  | O |  (intermediate) | ✓ |  (O:  and ) |
|  | Cl |  (intermediate) | ✓ | Can form  and  |
|  | P |  (intermediate) | ✓ |  |
|  | Cl |  (intermediate) | ✓ |  |
|  | Ag |  | ✗ | Ag has no stable positive intermediate state that disproportionates |
|  | Cu |  (intermed

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