Question

Ravi is writing some statements, Choose the incorrect statements and help him

Thermosetting cannot be softened by heating.
Thermoplastic gets deformed easily.
None of the above
Plastic bags are non-biodegradable.
​

Answer 1

Answer:

None of the above

hope it helps you!!

Answer 2

$\huge\bold{Answer:-}$

a) Thermosetting cannot be softened by heating.

a) Thermosetting cannot be softened by heating. b) Thermoplastics gets deformed easily.

a) Thermosetting cannot be softened by heating. b) Thermoplastics gets deformed easily. c) Plastic bags are non - biodegradable.

⭐Incorrect Option : a) Thermosetting cannot be softened by heating.

Explanation :-

Thermosetting can be softened by heating but thermosetting plastic cannot be softened by heating. This is due to the difference between their structure. Thermosetting and thermosetting plastic are made up of long chain chain called polymer. Thermosetting isn't made up of cross - linked polymers. And due to this, thermosetting becomes soft and starts melting.

Where as in Thermosetting plastic, Polymers chain is cross - linked and due to this, polymers chain don't slide over one another, and this prevents plastic from getting soft and melting.

Thus, Thermosetting can be softened by heating.