Chemistry
Give one word or a phrase for the statement : Electrode used as cathode in electrorefining of impure copper.
Related Questions
Choose the correct answer from the options given : The inert electrode used in the electrolysis of acidified water is :
- Nickle
- Platinum
- Copper
- Silver
State one relevant reason for : Graphite anode is preferred to platinum in the electrolysis of molten lead bromide.
Fill in the blanks from the choices give in bracket : An alkali which completely dissociates into ions is …………… [ammonium hydroxide, calcium hydroxide, lithium hydroxide]
Choose the correct word which refers to the process of electrolysis from A to E, to match the description (i) to (iv): A: Oxidation, B: Cathode, C: Anode , D: An electrolyte , E : Reduction
(i) Conducts electricity in aq. or in molten state.
(ii) Loss of electrons takes place at anode.
(iii) A reducing electrode
(iv) Electrode connected to the positive end or terminal of the battery.