Q 3. Classify each of the following solids as ionic, metallic, molecular, network (covalent) or amorphous.

Q 3. Classify each of the following solids as ionic, metallic, molecular, network (covalent) or amorphous.

(i) Tetra phosphorus decoxide (P₄O₁₀)                           Molecular

(ii) Ammonium phosphate (NH₄)₃PO₄                             Ionic                          

(iii) SiC                                                                        Network (covalent)

(iv) I₂                                                                           Molecular

(v) P₄                                                                           Molecular 

(vi) Plastic.                                                                    Amorphous

(vii) Graphite                                                                  Network (covalent)

(viii) Brass                                                                     Metallic

(ix) Rb                                                                            Metallic

(x) LiBr                                                                          Ionic

(xi) Si                                                                            Network (covalent)