Please solve the conclusion and the Post laboratory questions(in detail).

Lab 01: Characterization tests of Alkanes and Alkenes. Learning Outcomes: 1. To characterize the reactions of alkanes and alkenes. 2. To distinguish between alkanes and alkenes. E. Conclusion (Summarize what you learned from this experiment) F. Post-Laboratory Questions: 1. Why does alkene decolorize the bromine water in Test 1 ? 2. Why the alkane does not react with concentrated Sulphuric Acid in Test 2 ? 3. What type of reaction occurs in Test 4 (Substitution, addition, reduction, oxidation,..) Explain? 4. Explain why two layers are obtained when dilute KMnO4 is added to an alkane in Test 4