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01. Molten sodium chloride conducts electricity due to thepresence of(A) Free electrons(B) Free ions(C) Free molecules(D) Atoms of sodium and chlorine |
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Answer» Why is sodium a good conductor of electricity but sodium chloride is not? Answer Follow Request More Ad by State Bank of India Find the information you need from the State Bank of India. Get the answers to your queries right here from SBI’s official account. Follow Us 2 ANSWERS  Jeffrey Whittaker, former High school and community college teacher (2010-2016) Answered May 20 Sodium is a metal. Metals are atoms in a sea of electrons. These electrons can move and conduct electricity. The atoms in the metal are actually cations or positivity charged. The sea of electrons is a large molecular orbital where the negative charges balance the positive charge of the atoms but allow electrons to flow between atoms or conduct electricity. Sodium chloride is a salt. In the solid state the valance electron of sodium has moved to the chloride atom where It remains in the atomic orbitals of chlorine. Thus the electrons can’t flow. The crystal is made up of rigid electrostatic bonds. However if the solid is melted, the cations and anions can move and carry a charge. So a molten salt will conduct electricity. |
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