Flexible foam (for mattresses) are usually made of _________________?

Related Mcqs:

Thermoplastic resins usually____________________?

A. Remain hard as long as they are hot B. Cannot be reclaimed from waste C. Permanent setting resins D. Less brittle than thermosetting resins...

Branched chair polymers as compared to linear polymers have _________________?

A. Higher melting point B. Higher tensile strength C. Lower density D. None of these...

In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer ?

A. PTFE B. Buna-S C. PMMA D. Polycaprolactam...

Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their________________?

A. Molecular sizes B. Magnitude of intermolecular forces C. Resistance to heat D. Polymerisation mechanism Answer: Option B...

Contact lenses for eyes are made of Perspex, which is nothing but_______________?

A. poly-methyl-methacrylate B. Polystyrene C. Unsaturated polyester D. Polypropylene...