ZnO crystals on heating acquires the formuls `Zn(1+x)O`. Or There is an increase in conductivity when silicon doped with phosphorus. Give reason.

ZnO crystals on heating acquires the formuls `Zn(1+x)O`. Or There is a

1.	ZnO crystals on heating acquires the formuls `Zn(1+x)O`. Or There is an increase in conductivity when silicon doped with phosphorus. Give reason.
Answer» On heating, ZnO loses oxygen `O^(2-)` ions and changes to `Zn^(2+)` ions. Due to the presence of excess `Zn^(2+)` ions, `Zn(1+x)O` is formed. Or As as result of doping of group 14 element with group 15 element, the extra electrons available are responsible for increase in electrical conductivity. n-p type semi-conductors are formed as a result of this.

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ZnO crystals on heating acquires the formuls `Zn(1+x)O`. Or There is an increase in conductivity when silicon doped with phosphorus. Give reason.

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