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Question 4: Simple carbohydrates can be found in almost all starchy food, dairy product and fruits. It can be easily broken down by the body for energy consumption. Monosaccharides are examples of simple carbohydrate with two different types. By using monosaccharides as example, draw and label a pair of monosaccharides that are also a pair of geometrical isomers. [3 marks] Question 5: Cl2, 600°C CzH6 -C3H,CI Propylene is an unsaturated organic compound which is an important building block for the production of a variety of important monomers, polymers and intermediates. Based on the reaction above, explain types of organic reaction and the intermediates involved. [2 marks] Different condition applied to the reaction above will produce different product. Predict the intermediates, product and types of reaction under the new conditions. (4 marks]