Which of the following is an intermediate in the reaction between methane and chlorine in the presence of ultra-violet light? 12. А. CH3 •CHCI, •CH2CI cr
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- 3. Predict the products of the following halogenation reactions. OH Br₂, hv HBr HBr ROOR PBr3Which of the following compound/s are correct in the given statements? 1.What compound/s will be able to get the change in the color of AlCl3 Crystal? If tert-butyl chloride is added in AlCl3. 2. Which compound will react in water under under light conditions with Br2? 3. Which compound will react in Kl under under dark conditions with I2?Which statement best describes the products of this reaction?
- Which of the following reactions will be faster and why? HBr H20 `Br Br4. Ag catalyst ? H2C=CH2 + O2 250 °Ctrue or false 1. The rate of a reaction is independent of temperature.2. Slow reactions can be speeded up by raising the temperature.3. Reaction rates increase with increasing temperature.4. Solid catalysts do not affect reaction rates.5. Reactions involving very unstable combinations of chemicals have large rate constants.
- 4. For the following reaction scheme, identify by drawing the reagents a, c and d and the intermediate b that are formed in the synthesis of 2-phenylethanoic acid. a Br b CO2 Br d. HO,What is the reaction mechanism and what are the major products of this reaction?7. The reaction of methoxide anion with bromoethane to yield the ether ethyl methyl ether and the bromide anon (Br-) is an excellent example of a general reaction type called Sy2 (substitution nucleophilic bimolecular): CH,0+ CH,СH-Br a CH3-0-CH,СH; + Br- a. Change in enthalpy is -103 kJ/mol; the change in entropy is + 0.025 kJ/mol-K. Calculate DG at 300K. b. Is the reaction endergonic or exergonic? c. Is the reaction endothermic or exothermic? d. Use curved arrows to show the complete mechanism. Reaction of 2-methyl-1-butene with H-Cl could yield TWO alkyl chloride products. Draw and name 8. them.
- 6. Given the reactions below, provide the missing products and explain the differences among the hydride reactions. Where is stereochemistry is present, does it change or stay the same? 1. LİAIH4, THF 1. NaBH4, EtOH 2. H;O* 2. H3O* + NH 1. LİAIH4, THF 1. NABH4, EtOH 2. H3O* 2. H;O* ОН 1. LİAIH4, THF 1. NaBH4, ETOH 2. H3O* 2. H3O*3) What will be the products of these reactants? A. O3 H2O2 B.102. The major products A and B in the following reaction sequence are CHO Br Br (i) PPh3 (ii) NaH (A) NaH OH (B)