The `Ew` of an element is `13`. It forms an acidic oxide which `KOH` forms a salt isomorphous with `K_(2)SO_(4)`. The `Aw` of element is
a. `13`, b. `26`, c. `52`, d. `78`

Explanation

To find the atomic weight (Aw) of the element based on the given information, we can follow these steps:

### Step 1: Understand the Given Information
We know that:
- The equivalent weight (Ew) of the element is 13.
- The element forms an acidic oxide.
- KOH forms a salt isomorphous with K₂SO₄.

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