GATE XE · 2025 · XE-F
Question 129: Polymer Characterization
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Question 129
XE-FNAT2 marksNeeds review
Titration was used to determine the molar mass of two linear monodisperse polymers A and B. Both the polymers possess the same repeat unit and contain acid end-groups. First, 10 g of polymer A was titrated with 5 mL of a 0.1 M alkali solution. In a separate experiment, 5 g of polymer B was titrated with 5 mL of a 0.1 M alkali solution. All of the alkali solution reacted with the acid end-groups present in both polymer A and polymer B.
The ratio of the molar mass of A to the molar mass of B is ________ . (Round off to one decimal place)
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2025XE-F
GATE XE 2025 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-F
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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