What are alloys ?
What are alloys ?
Alloys are homogeneous mixtures of two or more elements. The elements could be two metals, or a metal and a non-metal. An alloy is formed by first melting the metal and then dissolving the other elements in it. For example, steel is an alloy of iron and carbon.
Similar Questions
$(i)$ Write the electron-dot structures for sodium. oxygen and magnesium.
$(ii)$ Show the formation of $Na _{2} O$ and $MgO$ by the transfer of electrons.
$(iii)$ What are the ions present in these compounds ?
$(i)$ Write the electron-dot structures for sodium. oxygen and magnesium.
$(ii)$ Show the formation of $Na _{2} O$ and $MgO$ by the transfer of electrons.
$(iii)$ What are the ions present in these compounds ?
What type of oxides are formed when non-metals combine with oxygen?
What type of oxides are formed when non-metals combine with oxygen?
What are amphoteric oxides? Give two examples of amphoteric oxides.
What are amphoteric oxides? Give two examples of amphoteric oxides.
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water