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QUESTION 4 (25 marks) i. Based on Table 2, explain why tert-butyl have 0 rate of reaction in comparison to other class of halides. Draw the chemical structure to support your statement. Table 2. Effects of structure on SN2 reaction Halide Class of halide Relative rate of reaction CH3- CH3CH2- (CH3)2CH- (CH3)3C- 30 1 0.03 0 primary primary secondary tertiary ii. Explain the production of oxygen by algae and cynobacteria for terraforming exoplanets, and why they are very appealing for the endeavour? iii. The oxidation and accumulation of organic compounds such as NOx, Sox were found to aggravate the global warming. Suggest three ways to reduce the impact of climate change to meet the demand of national carbon emission, as well as to halt the increase of temperature globally