(a) Silicon carbide (sic)=Covalent or network
Argon-Molecular (non polar)
(b) When ZnO is heated, it loses oxygen
`ZnOtoZn^(2+)+(1)/(2)O_(2)+2e^(-)`
`Zn^(2+)` ions are entrapped in the interstitial voids and `e^(-)` s in...
(a) Sodium sulphate-Ionic solids
Hydrogen-Molecular solid (non-planar)
(b) In ionic solid of AgCl, if `CdCl_(2)` is added as an impurity, they will create vacancies. `2Cd^(2+)` ion replaces onn `2Ag^(+)` ion...
In above reaction,
The -OH group of the substrate molecule has undergone a change.
The H-atom of hydroxyl group (-OH) is replaced by sodium forming the product.