Question

Which of the following statements is incorrect?

• A. Mixture of styrene and methyl methacrylate can form ionic addition polymer.
• B. Low density polyethylene is a poor conductor of electricity
• C. Melamine formaldehyde is a thermosetting polymer.
• D. Polypropylene is a thermoplastic polymer.

Answer 1

The correct option is A Mixture of styrene and methyl methacrylate can form ionic addition polymer.

Mixture of styrene and methyl methacrylate can form a copolymer and not an ionic addition polymer. Hence, the statement in option (c) is incorrect.
Other statements are correct.
Melamine formaldehyde (also called melamine or MF) is a hard, very durable, and versatile thermosetting aminoplast with good fire and heat resistance.
LDPE is a bad conductor of electricity and is chemically inert. It is synthesized through the polymerization reaction of ethane under the influence of high pressure (1000-2000 atm) and temperature (350-570 K) in the presence of catalyst i.e. dioxygen or peroxide initiator.
Polypropylene, also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.