Question

11. Difference –

a. Biodegradable and Non – Biodegradable Substances .

b. Metals and Non – Metals .

c. Thermoplastics and Thermosetting plastics .

d. Linear polymerization and cross – linked polymerization .

e. Metal oxides and non – metal oxides .

atleast 2 point each
answer fast......​

Answer 1

Answer:

A.Biodegradable:

1)substance which decompose naturally in the environment are called biodegradble substances

2)they are not jarmful to living beings

Non biodegradable:

1)substances which donot decompose naturally

2)they are harmful to living beings

B:

Metals

1.they are solid at RTP

2.they are lustrous

Non.metals

1.they exist as solid,liquid and gas

2.they atre not lustrous

C:

Thermoplastic:

1.softened on heating and hardened on cooling repeatedly

2.e.gPVC,toys etc

Thermosetting:

1.hardened on cooling and can not be softened again

2.e.g bakelite,epoxy resins etc

D:

Linear polymerization

1.join end to end.

2.e.g polyethlene

Cross linked polymerization

1.joned by covalent bonds

2.e.g rubber

E:

Metal oxides

1.forms metallic oxides on reaction with oxygen

2.basic

Non metallic oxide

1.forms non metallic oxide on reaction with oxygen

2.acidic