Chemical Technology GATE-2019

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Q 1: Producer gas is obtained by





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Q 2: In the Kraft process, the essential chemical reagents used in the digester are





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Q 3: The most common catalyst used for the oxidation of o-xylene to phthalic anhydride is





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Q 4: In petroleum refining operations, the process used for converting paraffin and naphthene to aromatics is





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Q 5: The combination that correctly matches the polymer in Group 1 with the polymerization reaction type in Group 2 is

Group -1Group -2
P: Nylon 6I: Condensation polymerization
Q: PolypropyleneII: Ring-opening polymerization
R: polyesterIII: Addition polymerization




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Q 6: The combination that correctly matches the process in Group 1 with the entries in Group 2 is

Group -1Group -2
P: Wulff processI: Sulfur mining
Q: Sulfite processII: Soda ash production
R: Solvay processIII: Acetylene production
S: Frasch processIV: Pulp production




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