Respuesta :

Electrolyte is any species which when dissolved in solvent particularly water dissociates into cations and anions. Electrolytes are conductors of electricity. In given options;

CCl₄ (Tetrachloromethane) is a covalent compound. And it doesn't dissociate to any cation or anion. So it is not electrolyte.

SiO₂ (Silicon Dioxide) is also covalent in nature and exist in giant framework. It is not electrolyte.

Glucose (C₆H₁₂O₆) is also covalent compound. And doesn't produced any ion in water, hence it is not electrolyte.

H₂SO₄ (Sulfuric acid) is Electrolyte. When it is dissolved in water it produces H⁺ and SO₄²⁻ ions as follow,

                                 H₂SO₄    →      2 H⁺ ₍aq₎    +   SO₄²⁻ ₍aq₎

Result:
               H₂SO₄ is electrolyte.

The substance that has been acting as an electrolyte from the given molecules is sulfuric acid. Thus, option 4 is correct.

Electrolytes have been defined as the chemical substances that has been dissociated into constituent ions when dissolved in the aqueous solution.

Identifying electrolytes

The ionic compounds are bounded by weak intermolecular forces and are dissociated into ions in the solution. Thus, the compounds are given as electrolytes.

The covalent bonded molecular atoms are not dissociated into ions and are not considered as electrolytes.

The substance that has been acting as an electrolyte from the given molecules is sulfuric acid. Thus, option 4 is correct.

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