Advertisements
Advertisements
प्रश्न
Element X is a metal with a valency 2. Element Y is a non-metal with a valency 3.
If the compound formed between X and Y is melted and an electric current passed through the molten compound, the element X will be obtained at the ______ and Y at the ______ of the electrolytic cell. (Provide the missing words).
उत्तर
If the compound formed between X and Y is melted and an electric current passed through the molten compound, the element X will be obtained at the cathode and Y at the anode of the electrolytic cell.
APPEARS IN
संबंधित प्रश्न
Explain why it is preferable to use a number of graphite electrodes as the anode instead of a single electrode, during the above electrolysis.
Define the term : Electrolysis
With reference to the electrolysis of acidulated water, answer the following :
a) why distilled water is a non- electrolyte?
b) What is the electrolytic cell called?
c) State what you would observe at the (i) Cathode (ii) Anode
d) Summarize the electrode reactions.
e) why is electrolysis of acidulated water considered as an example of catalysis?
Fill in the blank :
Hydrogen and metallic ions are ____________ because they ____________ electrons.
Fill in the blank :
Non-metallic ions are _____________ because they _____________ electrons.
Define or explain the term: Electrolysis.
Give one example of a substance which contain :
both ions and molecules.
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
Identify the following reactions as either oxidation or reduction : Fe+3 + e- → Fe+2
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:
ionization
