Chemical Engineering
GATE CH topic:chemical-technology PYQs
Build your understanding with focused practice from past exam papers.
Questions 21–30 of 38. Imported answers require independent review unless marked reviewed.
Question 11
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Which one of the following is NOT CORRECT?
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The operating temperature range for the Haber process is 350–500 °C. It is used for the production of ammonia at
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Consider the refinery process in Group – 1 and the catalysts in Group – 2.
Group – 1 Group – 2
P Hydrodesulfurization I Zeolites
Q Fluid catalytic cracking (FCC) II Pt/Al₂O₃
R Naphtha reforming III Co-Mo/Al₂O₃
The correct combination is
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Consider the process in Group – 1 and the reactions in Group – 2.
Group – 1 Group – 2
P Solvay process I RCOOH + NaOH → RCOONa + H₂O
Q Oxo process II CH₂=CH₂ + CO + H₂ → CH₃CH₂CHO
R Saponification III CaCO₃ + 2NaCl → Na₂CO₃ + CaCl₂
The correct combination is
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Producer gas is obtained by
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In Kraft process, the essential chemical reagents used in the digester are
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The most common catalyst used for oxidation of o-xylene to phthalic anhydride is
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In petroleum refining operations, the process used for converting paraffins and naphthenes to aromatics is
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The combination that correctly matches the polymer in Group-1 with the polymerization reaction type in Group-2 is
Group-1: P) Nylon 6; Q) Polypropylene; R) Polyester
Group-2: I) Condensation polymerization; II) Ring opening polymerization; III) Addition polymerization
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Open questionCHMCQ2 marksNeeds review
The combination that correctly matches the process in Group-1 with the entries in Group-2 is
Group-1
P) Wulf process
Q) Sulfite process
R) Solvay process
S) Frasch process
Group-2
I) Sulfur mining
II) Soda ash production
III) Acetylene production
IV) Pulp production
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