Chemical Technology GATE-2011

Q 1: Match the polymerization mechanisms in Group I with the corresponding polymers in Group II.

Group -1	Group -2
P: Chain growth/addition polymerization	I: Polyethylene
Q: Step growth /condensation polymerization	II: Polyvinyl chloride
	III. Polyethylene terephthalate

A) P–III; Q–I, II
B) P–I, II; Q–III
C) P–II, III, Q–I 
D) P–I, Q–II, III

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Q 2: Which ONE of the following sequences is arranged according to INCREASING calorific value?

A) Producer gas, Natural gas, Water gas
B) Natural gas, Producer gas, Water gas
C) Producer gas, Water gas, Natural gas
D) Water gas, Natural gas, Producer gas

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Q 3: The CORRECT sequence of process equipment used in the production of sulphuric acid from sulfur by contact process is

A) burner, catalytic converter, 98% sulphuric acid absorption tower, oleum absorption tower
B) Catalytic converter, oleum absorption tower, 98% sulphuric acid absorption tower, burner
C) Burner, catalytic converter, oleum absorption tower, 98% sulphuric acid absorption tower
D) Burner, oleum absorption tower, catalytic converter, 98% sulphuric acid absorption tower

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Q 4: Hydro-treating is used for

A) Removal of water from crude oil
B) Treatment of crude oil with water
C) Improving the octane number of gasoline
D) Removal of sulfur and nitrogen from petroleum fractions

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Q 5: Zeolite ZSM-5 is added to commercial FCC catalyst for

A) Promoting SO₂ reduction
B) Promoting CO oxidation
C) Improving tolerance to metal content in feed
D) Enhancing Octane number

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Q 6: Match the reactions in Group I with the products in Group II.

Group -1	Group -2
P: Ammoxidation	I: Aniline from benzene
Q: Nitration	II: Benzoic acid from toluene
R: Dehydrogenation	III: Acrylonitrile from propylene
S: Oxidation	IV: Styrene from ethylbenzene

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

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