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Miracle Learning Centre Chemistry Tuition Question on Organic Chemistry. (O Level / IP Chemistry)

1. Hydrogen gas is required in the production of margarine. The word equation for the production of margarine is shown below: Vegetable oil + Hydrogen gas  Margarine Which of the following options correctly lists the nature of vegetable oil, the type of reaction occurring and the catalyst used? Nature of vegetable oil Type of reaction Catalyst used A. unsaturated compound substitution reaction manganese(IV) oxide B. saturated compound addition reaction phosphoric acid C. saturated compound substitution reaction iron D. unsaturated compound addition reaction nickel

2. The fermentation of glucose can produce ethanol. Why must the temperature be kept at approximately 37C? A. Ethanol has a low boiling point and is volatile. B. The living enzymes will be destroyed at a higher temperature. C. Oxygen may diffuse into the mixture if the temperature is too cold. D. The speed of reaction will be too fast to control.

3. Ethanoic acid and propanoic acid are members of the same homologous series of carboxylic acids. Which one of the following is not the formula of another member of this homologous series? A. C4H9CO2H B. C11H23CO2H C. C17H33CO2H D. C20H41CO2H

Miracle Learning Centre Answer to Chemistry Tuition Question on Organic Chemistry. (O Level / IP Chemistry) 1)D. Vegetable oil is an alkene. It undergoes addition reaction to form an alkane. The conditions needed for this hydrogenation reaction is 2000C and Ni catalyst. 2)B. 3)C. Learn from our Chemistry Tuition Questions and Answers. Miracle Learning Centre Call 6463 8756 or sms 8128 8342/9839 9908. (Specialist in Science and Maths) for Primary, Secondary and JC levels. Miracle Learning Centre specialises in Chemistry tuition, Physics tuition, Maths tuition and Science tuition Classes.