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Question
Give reason for the following:
A graphite anode is preferred to other inert electrodes during the electrolysis of fused lead bromide.
Solution
Graphite is unaffected by the bromine vapours.
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RELATED QUESTIONS
Powdered sodium chloride (common salt) does not conduct an electric current, but it does so when ______ or when ______.
Write the difference between with examples:
A strong electrolyte and a weak electrolyte
Fill in the blank :
The ions which discharge on the positive electrode during electrolysis ____________electrons. Thus, the ions are said to be _____________.
Name : A salt which is a weak electrolyte.
Choose the correct answer from the option given below:
In electrolysis of molten lead bromine anode is made up of
Define or explain the term: Electrolysis.
Name the gas released at the cathode when acidulated water is electrolyzed.
Choose A, B, C or D to match the descriptions (i) to (v) below . Some alphabets may be repeated.
(A) Non-electrolyte, (B) Strong electrolyte, (C) Weak electrolyte, (D) Metallic conductor
(i) Molten ionic compound
(ii) Carbon tetrachloride
(iii) An aluminium wire
(iv) A solution containing solvent molecules, solute molecules and ions formed by the dissociation of solute molecules
(v) A sugar solution with sugar molecules and water molecules.
Give reason for the following:
Potassium is not extracted by electrolysis of its aqueous salt solution.
X - \[\ce{HCl <=> H^{1+} + Cl-}\] (in solution state)
Y - \[\ce{PbBr2 <=> Pb^{2+} + 2Br^{1-}}\] (in molten state)
From the above reaction X or Y, identify the reaction which exhibit:
electrolytic dissociation
