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Chemistry UTME / JAMB 2022 Sulphur Sulphur Compounds
SO\(_2\) + O\(_2\) → 2SO\(_3\) In the reaction above, the most suitable catalyst is?
A chromium(vi)oxide
B iron(iii)oxide
C copper(i)oxide
D vanadium(v)oxide
medium Difficulty
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Chemistry UTME / JAMB 2022 Sulphur Sulphur Compounds
The sulphide that is commonly used in coating electric fluorescent tubes is?
A iron(ii)Sulphide
B tin(ii)sulphide
C Zinc Sulphide
D lead(iv) Sulphide
medium Difficulty
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Chemistry UTME / JAMB 2010 Sulphur Sulphur Compounds
The acid that is used to remove rust is?
A boric
B hydrochloric
C trioxonitrate (V)
D tetraoxosulphate (VI)
medium Difficulty
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Chemistry UTME / JAMB 2009 Sulphur Sulphur Compounds
The colour changes observed when testing for reducing agents using acidified potassium heptaoxodichromate (VI) solution is?
A yellow to purple
B orange to green
C green to orange
D purple to yellow
medium Difficulty
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Chemistry UTME / JAMB 2009 Sulphur Sulphur Compounds
Hydrogen sulphide gas can act as?
A an oxidizing agent
B a dehydrating agent
C a bleaching agent
D a precipitating agent
medium Difficulty
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Chemistry WAEC / WASSCE 2005 Sulphur Sulphur Compounds
Which of the following reactions is sulphur (IV) oxidizing agent?
A 2HNO 3(aq) + SO2(g) → H2SO4(aq) + 2NO2(g)
B 2KMnO 4(aq) + 5SO2(g) + 2H2O → K2SO4(aq) +MnSO4(aq) 2H2SO4(aq)
C FeCI3(aq) + SO2(g) + 2H2O(l) → FeCI 2(g)+ 2HCI(g) + H2SO4(aq)
D 2H2S(g) + SO2(g) →2H2O(l) + 3S(s)
medium Difficulty
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Chemistry WAEC / WASSCE 2000 Sulphur Sulphur Compounds
What is the effect of using vanadium (V) oxide as catalyst in the reaction represented by the following equation? 2SO2 + O2 ⇌ 2SO3; ∆H = - xKJmol-1
A Decreases the value of ∆H
B Increases the collision rate of reactant particles
C Shifts equilibrium position to the right
D Reduces the time for attainment of equilibrium
medium Difficulty
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Chemistry UTME / JAMB 1980 Sulphur Sulphur Compounds
When chlorine gas is passed into a solution of sulphur dioxide?
A sulphur dioxide is reduced to sulphur
B the chlorine is oxidized to hydrochloric acid
C dilute sulphuric acid and hydrochloric acid are produced
D Hydrochloric acid and sulphur are produced
E sulphur trioxide is the only product
medium Difficulty
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