Explain the meanings of malleable and ductile

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Malleable : Substances that can be beaten into thin sheets are called malleable. For example, most of the metals are malleable.

Ductile : Substances that can be drawn into thin wires are called ductile. For example, most of the metals are ductile.

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 ?

Metallic oxides of zinc, magnesium and copper were heated with the following metals.

Metal Zinc Magnesium Copper
Zinc oxide - - -
Magnesium oxide - - -
Copper oxide - - -

In which cases will you find displacement reactions taking place ?

Samples of four metals $A$, $B$, $C$ and $D$ were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Metal Iron $(II)$ sulphate Cooper $(II)$ sulphate zinc sulphate Silver nitrate
$A.$ No reaction Displacement    
$B.$ Displacement   No reaction  
$C.$ No reaction No reaction No reaction Displacement
$D.$ No reaction No reaction No reaction No reaction

Use the Table above to answer the following questions about metals  $A$, $B$, $C$ and $D$.

$(i)$ Which is the most reactive metal ?

$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate ?

$(iii)$ Arrange the metals $A$, $B$, $C$ and $D$ in the order of decreasing reactivity.

Why is sodium kept immersed in kerosene oil ?

An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be