Question

Ap-type material can be made if pure germanium is doped with Silicon Arsenic Gallium Carbon

Answer 1

A p-type material is formed when a positive hole s generated within the crystalline structure and that can be done when a pure element of Group a is doped with another element from Coroup (x-1). Now, Pure Germanium belongs to group 14 (2) Silicon belongs to group 14 (2). Arsenic belongs to group 15 (x + 1). Calium belongs to group 13 (x-1). Carbon belongs to group 14 (2) So, A p-type material can be made if pure germanium is doped with Grallium 27 sic is a covalant compound, Sally is an ionic compound. c is a pure atom and takes part in no lonic bonding Go is a well known fullarene which is a Covalant compound, so, An example of ionic Geystralline solid is Salla

37 Dipele - Dipale interactions are result of strong elechostale Interactions which is fare stronger than dispersion fares, and London Jarres linduced disale-induced dipple Interactions). Also, dipole-dipple interactions are result of permanent, dipdes, so the corect option is, interactions are stronger than dispersion Dipole - Dipele forces. F atom bake part in Hydrogen A only, ON and bonding. So, the correct option is H and F 5) Tonic compounds do not show phydrogen bonding, NaF is ionic compound and has no H atom to show Hydrogen bonding. Same is for Nazo, C2 H₂ F2 contain no Hydrogen bond as it has Hydrogen bond accepter Fluerine atom but no H atan is so polar to take part in a Hydrogen bond. NH₂ has extensive Hydrogen so, The correct option is bonding, NH3,