GATE Chemical Technology: Natural products industries: pulp and paper, sugar and ethanol – Previous Year Questions

3 GATE previous year questions on Natural products industries: pulp and paper, sugar and ethanol (Chemical Technology, Chemical Engineering) with answers and explanations, from every paper.

1. GATE 2022 CH Q19 (1 mark, Multiple choice) – The chemical formula of Glauber's salt, used in the Kraft process, is
2. GATE 2025 CH Q11 (1 mark, Multiple choice) – To manufacture paper from (i), the (ii) must be freed from the binding matrix of (iii) in the pulping step. Which one of the following is the CORRECT…
3. GATE 2026 CH Q18 (1 mark, Multiple choice) – In a traditional continuous Kraft (Sulfate) pulping process, consider the following major steps: Bleaching (BL), Chipping (CH), Debarking (DE),…