Polypropylene is preferred to polythene, because the former is ____________________?
Correct answer: D. Both B. & C.
- A. Non-inflammable
- B. Harder
- C. Stronger
- D. Both B. & C.
Explanation
Polypropylene is generally harder and stronger than ordinary polythene because its methyl groups increase chain rigidity and crystallinity. It is not non-inflammable, so both hardness and strength are the relevant advantages.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
The inter particle forces between linear chains in nylon-66 are ______________ bonds?
Hot drink (e.g., tea) cups are usually made of _____________________?
Low density polythene as compared to high density polythene is____________________?
Linear polymers are normally_________________?
_____________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate?
Benzoyl chloride is not used as a catalyst in the manufacture of___________________?