QUIZ #2

Question 1 Catalytic cracking is a process in which: small hydrocarbons are joined to make a polymer heat and/or a catalyst is used to break large hydrocarbons into smaller ones ethylene is separated from crude oil Bonds between hydrocarbon molecules are broken b)

Questions 2 and 3 2. The catalyst used for dehydration of ethanol is : A transition metal catalyst Dilute sulfuric acid Concentrated sulfuric acid Bromine water 3. Write the chemical equation for this reaction c) C2H5OH(g) → C2H4(g) + H2O(g)

Question 4 Name the following alkanols: CH3CH2CH2OH b) c) d) CH2OHCHOHCH3 1-Propanol 5-bromo – 1- pentanol 2-methyl-2-propanol 1,2 -propanediol

Question 5 Name the following alcohols and identify them as primary, secondary or tertiary alcohols: a) c) b) d) Secondary 2-butanol Secondary, 3-methyl-2-butanol Primary 3-methyl-1-butanol Tertiary, 2-methyl-2-butanol

Question 6 How would you prepare the following: 2-chloropentane 1, 2 dichloropentane 2-propanol a) Alkene + hydrogen halide, 2-pentene + HCl b) Alkene + halogen, 1-pentene + Cl2 c) Alkene + water in presence of acidic catalyst, propene + water

Question 7 An alkyl group is defined as: A group of atoms derived from an alkane by the removal of one hydrogen atom. Ex: methyl H H C H Name and give a formula for the next three alkyl groups. Ethyl CH3CH2 Propyl CH3CH2CH2 Butyl CH3CH2CH2CH2

Question 8 What types of compounds dissolve in ethanol? Give a specific example. Polar and non-polar substances Water, hexane

Question 9 Calculate the molar mass for each of the following: Methane Water 16.032g 30.48g 18.016g

Question 10 During a chemical reaction chemical bonds are broken and this will (release/use) energy. During a chemical reaction new bonds are formed and this will (release/use) energy. In an exothermic reaction the energy in the reactants is (less/greater) than the energy present in the products In an endothermic reaction the energy in the reactants is (less/greater) than the energy present in the products use release greater less