Catalytic hydrogenation of benzene produces?
A. Oil B. Cyclohexene C. Cyclohexane D. Margarine Correct Answer: Option C – Cyclohexane
During the vulcanization of rubber; sulphur is added to?
A. Break down rubber polymer B. Lengthen the chain of rubber C. Bind rubber molecules together D. Act as a catalyst Correct Answer: Option C – Bind rubber molecules together
The main impurity in iron ore during the extraction of iron is?
A. Silicon (IV) oxide B. Carbon (IV) oxide C. Calcium trioxosilicate D. Sulphur (II) oxide Correct Answer: Option A – Silicon (IV) oxide
The general formula for the alkanals is?
A. ROH B. R2CO C. RCOOR¹ D. RCHO Correct Answer: Option D – RCHOProducts
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