Advertisements
Advertisements
प्रश्न
Choosing only words from the following list, write down the appropriate words to fill in the blanks (a) to (e) below:
anions, anode, cathode, cations, electrode, electrolyte, nickel, voltameter.
To electroplate an article with nickel requires an (a) ________ which must be a solution containing (b) ________ions. The article to be plated is placed as the (c) _________of the cell in which the plating is carried out. The (d)________ of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e)________.
उत्तर
To electroplate an article with nickel requires an (a) Electrolyte which must be a solution containing (b) Nickel ions. The article to be plated is placed as the (c) cathode of the cell in which the plating is carried out. The (d) anode of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e) Cations
APPEARS IN
संबंधित प्रश्न
Choose the correct answer from the options given below :
The particles present in strong electrolytes are :
(A) Only molecules
(B) Mainly ions
(C) Ions and molecules
(D) Only atoms
Powdered sodium chloride (common salt) does not conduct an electric current, but it does so when ______ or when ______.
Give reason for the following:
Electrolysis of molten lead bromide is considered to be a reaction in which oxidation and reduction go side by side, i.e., a redox reaction.
Write the difference between with examples:
A strong electrolyte and a weak electrolyte
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?
How electrolysis can be used in extraction of aluminium? Why aluminium cannot be reduced by conventional reducing agents?
Give one example of a substance which contain :
Ions only
Identify the following reactions as either oxidation or reduction : K - e- → K+
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:
ionization
