Chemistry, asked by saimanikanta4745, 1 year ago

Explain the unique nature of zinc and aluminium give balanced equations to support your explanation

Answers

Answered by Anonymous
116
zinc and aluminium are amphoteric in nature so they both behave as acid as well as base.

Anonymous: ZnO+2HCl - ZnCl2+H2O.
Answered by RomeliaThurston
62

Answer: The equations of the following reactions are given below.

Explanation:

Aluminium and Zinc are the elements which lie above in the reactivity series.

These two metals show amphoteric nature because they react with acid and base both.

  • Reactions of Zinc with acid and base follows:

With acid:

When zinc reacts with hydrochloric acid, it produces zinc chloride and hydrogen gas.

Zn(s)+2HCl(aq.)\rightarrow ZnCl_2(aq.)+H_2(g)

With base:

When zinc metal reacts with sodium hydroxide, it produces sodium zincate and hydrogen gas.

Zn(s)+NaOH(aq.)\rightarrow Na_2ZnO_2(aq.)+H_2(g)

Zinc with acid and base produces a salt and releases hydrogen gas.

  • Reactions of Aluminium with acid and base follows:

With acid:

When aluminium reacts with hydrochloric acid, it produces aluminium chloride and hydrogen gas.

2Al(s)+6HCl(aq.)\rightarrow 2AlCl_3(aq.)+3H_2(g)

With base:

When aluminium reacts with sodium hydroxide, it produces sodium aluminate and hydrogen gas.

2Al(s)+2NaOH(aq.)+2H_2O(l)\rightarrow 2NaAlO_2(aq.)+3H_2(g)

Aluminium with acid and base produces a salt and releases hydrogen gas.

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