What are alloys? Name the alloy which has lead and tin as its constituent
and write one of its uses.
b) What is an amphoteric oxide? Write any two chemical properties of metals,
Answers
Answer:Alloys are the solid mixture of two or more metals. They are made by first melting the constituent metals and then mixing them thoroughly in fixed proportions.
Solder : Made of lead and tin
use of solder is to create electrical joint .
b) Metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides. Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide. Al2O3 is an example of an amphoteric oxide.
Explanation:
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Answer:
Alloys are the metals made by mixing two types of metal together. Solder is the alloy which has lead and tin as its constituent. The use of the solder is to create electrical joints.
Those metals which show basic as well as acidic behaviour are known as amphoteric oxide.
Two Chemical Properties of Metals are :-
* They are usually in the form of a solid at room temperature.
* They are very good conductors of electricity and heat.