Give reason for the following statements:-
1.Electrolysis of molten lead bromide is carry out in silica crucible.
2.Why graphite electrode is used instead of iron?
3.While place of pure water acidicfied water is used?
4.Why electrolysis of water is good example of catalysis?
Answers & Comments
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1.Silica is a lousy conductor, and it can tolerate high temperature and is therefore used as a vessel in which electrolysis of lead bromide is carried out.
2.graphite's structure makes it an excellent conductor.
3.when acid is added it catalyzes the ionization of water, and water is dissociated into and ions.
4.Sulphuric acid doesn't takes part in the reaction but promotes the reaction or increases the rate of the reaction.
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Verified answer
[tex]\blue{\huge\underline{\sf{Answer:-}}}[/tex]
(1) Silica is a lousy conductor, and it can tolerate high temperature and is therefore used as a vessel in which electrolysis of lead bromide is carried out.
(2) Graphite can conduct electricity due to the vast electron delocalization within the carbon layers (a phenomenon called aromaticity)
(3) Electrolysis of acidulated water is considered to be an example of catalysis. Pure water is not a good conductor of electricity, but when acid is added it catalyzes the ionization of water, and water is dissociated into and ions.
(4) Sulphuric acid doesn't takes part in the reaction but promotes the reaction or increases the rate of the reaction
[tex]\small\bf{\underline{\green{✔verified \: answer }}}[/tex]
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