what happen when sodium hydroxide is poured over an electrical wire made up of an aluminium?
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this type of reactions are called as displacement reaction and if the free element is of higher order then it will displace the bonded element. In this case it is not. Remember Potassium and Sodium share the highest rank in the reactivity series so with its diluted solution it is impossible to conduct a displacement reaction, hence no reaction is observed.
however there is another reaction possible because of the amphoteric nature of aluminium
Sodium aluminate is also formed by the action of sodium hydroxide on elemental aluminium which is an amphoteric metal. The reaction is highly exothermic once established and is accompanied by the rapid evolution of hydrogen gas. The reaction is sometimes written as:
2 Al + 2 NaOH + 2 H2O
→ 2 NaAlO2 + 3 H2
however there is another reaction possible because of the amphoteric nature of aluminium
Sodium aluminate is also formed by the action of sodium hydroxide on elemental aluminium which is an amphoteric metal. The reaction is highly exothermic once established and is accompanied by the rapid evolution of hydrogen gas. The reaction is sometimes written as:
2 Al + 2 NaOH + 2 H2O
→ 2 NaAlO2 + 3 H2
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Confirm your email to get notifications about answers and receive 10 points!2Primary SchoolScience5+3 ptsWhat happen when sodium hydroxide is poured over an electrical wire made up of an aluminium?Ask for details FollowReport by Thind3 3 hours agoAnswersGuleriasam115 · Helping HandKnow the answer? Add it here!Sathviksolleti Virtuosothis type of reactions are called as displacement reaction and if the free element is of higher order then it will displace the bonded element. In this case it is not. Remember Potassium and Sodium share the highest rank in the reactivity series so with its diluted solution it is impossible to conduct a displacement reaction, hence no reaction is observed.
however there is another reaction possible because of the amphoteric nature of aluminium
Sodium aluminate is also formed by the action of sodium hydroxide on elemental aluminium which is an amphoteric metal. The reaction is highly exothermic once established and is accompanied by the rapid evolution of hydrogen gas. The reaction is sometimes written as:
2 Al + 2 NaOH + 2 H2O
→ 2 NaAlO2 + 3 H2
Hope this helped u
however there is another reaction possible because of the amphoteric nature of aluminium
Sodium aluminate is also formed by the action of sodium hydroxide on elemental aluminium which is an amphoteric metal. The reaction is highly exothermic once established and is accompanied by the rapid evolution of hydrogen gas. The reaction is sometimes written as:
2 Al + 2 NaOH + 2 H2O
→ 2 NaAlO2 + 3 H2
Hope this helped u
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