Classify the following as amorphous or crystalline solids:

Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

Open in App

Solution

Amorphous solids - Any non crystalline solid in which the atoms and molecules are not organized in a definite lattice pattern.
Polyurethane, Teflon, cellophane, polyvinyl chloride ,fibre glass
Crystalline solids - Any solid material whose constituents are arranged in highly ordered microscopic structure forming a crystal lattice.
Naphthalene, benzoic acid, potassium nitrate, copper

Suggest Corrections

Similar questions

Identify the odd one out and justify.

(a) Chloride, nitrate, hydride, ammonium

(b) Hydrogen chloride, sodium hydroxide, calcium oxide, ammonia

(d) Ammonium chloride, sodium chloride, potassium nitrate, sodium sulphate

(e) Sodium nitrate, sodium carbonate, sodium sulphate, sodium chloride

(f) Calcium oxide, magnesium oxide, zinc oxide, sodium oxide.

(g) Crystalline blue vitriol, crystalline common salt, crystalline ferrous sulphate, crystalline sodium carbonate.

(h) Sodium chloride, potassium hydroxide, acetic acid, sodium acetate.

Q. Assertion :Quartz glass is crystalline solid and quartz is an amorphous solid. Reason: Quartz glass has long range order.

Q. classify the following as addition and condensation polymers:
Terylene, Bakelite, Polyvinyl chloride,Polythene

Write the balanced chemical equations for the following reactions.
(A) Calcium hydroxide + Carbon dioxide → Calcium carbonate + water
(B) Zinc + Silver nitrate → Zinc nitrate + Silver
(C) Aluminium + copper chloride → Aluminium chloride + Copper
(D) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride.

Write the monomers used for getting the following polymers.

Polyvinyl chloride

Teflon

Bakelite

Join BYJU'S Learning Program

Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

Classify the following as amorphous or crystalline solids:

Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.