Pick out the wrong statement regarding the solubility characteristics of high polymers?
Correct answer: D. High molecular weight polymers on dissolving gives solution of very low viscosity
- A. Greater the degree of cross-linking in the polymer, lesser is its solubility
- B. Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents
- C. Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent
- D. High molecular weight polymers on dissolving gives solution of very low viscosity
Explanation
Cross-linking restricts polymer chains and reduces their ability to separate and dissolve, while high-molecular-weight polymers generally form highly viscous solutions. Therefore, the statement that they give very low-viscosity solutions is the wrong one.
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
Pick out the wrong unit conversion of calorific value?
Pick out the correct statement pertaining to catalytic cracking ?
Pick out the wrong statement pertaining to the roll crushers?
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at_________________?
A copolymer of vinyl and vinylidene chloride is called_____________________?
Poly-methyl-methacrylate (PMMA) is known as_______________?