Class XII CHEMISTRY Unit 1 SOLID STATE

NCERT EXERCISES QUESTION AND ANSWER

PGT CHEMISTRYA.K.GUPTA

KENDRIYA VIDYALAYA SANGATHANZONAL INSTITUTE OF EDUCATION AND TRAINING

BHBANESWARDIRECTORL.CHARI

Q 1.3-Classify each of the following solids as ionic, metallic, molecular, network (covalent) or amorphous.(i) Tetra phosphorus decoxide (P4O10) (ii) Ammonium phosphate (NH4)3PO4 (iii) SiC (iv) I2 (v) P4 (vi) Plastic (vii) Graphite (viii) Brass (ix) Rb(x) LiBr (xi) SiAns: Ionic: Ammonium phosphate (NH4)3PO4 and LiBrMetallic :Brass, RbMolecular: Tetra phosphorus decoxide (P4O10) , I2 , P4

Network covalent: Graphite, SiC, Si,Amorphous: Plastic