1 / 8

Electrolysis

Electrolysis. Senior-II Uzair Altaf. Introduction. Electrolysis is the movement of “ cations ” towards the “cathode” and the “anions” towards the “anode”. Ions can only move in molten or aqueous sate, as the ions are tightly packed in solid state and are not mobile. Cathode.

joshua
Download Presentation

Electrolysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Electrolysis Senior-II Uzair Altaf

  2. Introduction • Electrolysis is the movement of “cations” towards the “cathode” and the “anions” towards the “anode”.

  3. Ions can only move in molten or aqueous sate, as the ions are tightly packed in solid state and are not mobile.

  4. Cathode • The positive ions (cations) accept electrons at the cathode and get reduced. e.g/- sodium ion + electron sodium metal

  5. Anode • The negative ions (anions) donate electrons at the anode and get oxidised. e.g/- chloride ion electron + chlorine gas

  6. Applications • Metal Purification Pure metal dissolves from the anode and gets deposited at the cathode. Cathode deposits Anode dissolving Metal ion electrolyte

  7. Applications • Electroplating metal dissolves from anode and gets coated on the object connected to the cathode. Object to be coated Metal (copper)

  8. Applications • Extraction of metals. Metals high up in the reactivity series are extracted by electrolysis. Ores used are in molten form.

More Related