Chemical Technology GATE-2012

Q 1: In petroleum refining catalytic reforming is used to convert

A) Paraffin’s and naphthenic to aromatics
B) Paraffin’s to hydrogen and carbon monoxide
C) Gas oil to diesel and gasoline
D) Light olefins to gasoline

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Q 2: The final boiling points of gasoline, diesel gas oil (AGO) and lubricating oils vary as

A) Gasoline > diesel > AGO> lubricating oils
B) Lubricating oils > AGO> diesel > gasoline
C) AGO> lubricating oils > diesel > gasoline 
D) Lubricating oils > diesel > AGO > gasoline

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Q 3: The main unit processes used for the production of hydrogen form natural gas are steam reforming (SR), pressure swing adsorption (PSA), low temperature water gas shift reaction (LT WGS)and high temperature water gas shift reaction (HT WGS). The correct sequence of these in the plant is

A) SR; LT WGS; HT WGS; PSA
B) PSA; SR; LT WGS; HT WGS
C) SR; HT WGS; LT WGS; PSA
D) PSA; HT WGS; LT WGS; SR

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Q 4: Match the process in Group I with the catalyst in Group II.

Group -1	Group -2
P: Fischer – Tropsch synthesis	I: Nickel
Q: Formaldehyde from methanol	II: Fe2O3
R: Hydrogenation of vegetable oils	III: Silver
S: Dehydrogenation of methylbenzene	IV: Cobalt

A) P-III, Q-IV, R-I, S-II
B) P-IV, Q-II, R-I, S-III
C) P-IV, Q-III, R-I, S-II
D) P-III, Q-IV, R-II, S-I

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Q 5: Match the process in Group I with the catalyst in Group II.

Group -1	Group -2
P: Polyethylene	I: Elastomeric
Q: Phenol-formaldehyde Polymer	II: Fibre
R: Polyisoprene	III: Thermoplastic
S: Polyester	IV: Thermosetting Polymer

A) P-III, Q-IV, R-I, S-II
B) P-IV, Q-II, R-III, S-I
C) P-III, Q-II, R-I, S-IV
D) P-IV, Q-III, R-I, S-II

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