Which of the following is a polyatomic ion?

Type: MCQ • Marks: 1

A. SO₄²⁻

B. Na⁺

C. Cl⁻

D. O²⁻

Explanation

Sulfate (SO₄²⁻) is composed of sulfur and oxygen atoms carrying a net charge of -2.

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Class 9th Science (MCQ)

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