millieprior millieprior

08-07-2020
Chemistry

contestada

If a concentrated solution of potassium bromide is electrolysed, what gas will be produced at the cathode?

Respuesta :

Brainy829 Brainy829

08-07-2020

Answer:

Molten lead bromide

Explanation:

PbBr 2(l), is an electrolyte. During electrolysis: Pb 2+ ions gain electrons at the cathode and become Pb atoms. Br - ions lose electrons at the anode and become Br atoms, which pair up to form Br 2 molecules.

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