Question

The valency of SO₄ ²⁻​

Answer 1

Answer:

Na₂SO₄

2️⃣ Na(SO₄)₂

3️⃣ Na(SO₄)

4️⃣ 2Na₂SO₄

Answer 2

Answer:

Valency of SO4 = 2

Sulphur has 6 electrons in its outer shell. Oxygen has a oxidation no. -2, for four oxygen atoms, we have oxidation number of -8.