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Post Utme Chemistry Past QuestionsQuestion 866:Which one of the following does not show allotropy at room temperature and pressure? A. Nitrogen B. Phosphorous C. Oxygen D. Carbon E. Sulphur Question 867:Cellulose and starch can classified as one of the following ____________ A. Sugar B. Sucrose C. Hydrocarbon D. Carbohydrates E. Fibres Question 868:How many isomers can be formed from organic compounds with molecular formular \(C _{3} H _{8} O\) ? A. \(2 \) B. \(3\) C. 4 D. 5 E. 6 Question 869:Which of the following is not a property of magnesium oxide? A. High melting point B. Dissolution in polar solvent C. Pressure of ionic bonds D. Possession of crystal lattice E. Low binding energy Question 870:Catalytic hydrogenation of alkenes produces compounds with general formula ____________ A. \(C _{n} H _{2 n+1} OH\). B. \(C _{n} H _{2 n+1} \quad\) C. \(C _{n} H _{2 n +2}\) D. \(C _{n} H _{2 n-1}\) E. \(C _{n}\left( H _{2} O \right)_{y}\) |
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