Question

What is a radical? What are tetravalent elements?​

Answer 1

Answer:

The ion formed after removal of Hydrogen ion (H⁺ ion) from an acid is called acid radical. Ex: When HCl loses H⁺ ion, it forms Cl⁻ which is an acid radical

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Answer 2

Radical is an atom or group of atoms having a charge positive or negative and behaves as a single unit in chemical reaction.

The elements having a valency of four are called as tetravalent elements.