termine the relationship between each pair of structures below (fill in the appropriate bubble). A + & Constitutional Isomers Enantiomers Diastereomers Same Compound (b) OH Constitutional Isomers Enantiomers Diastereomers Same Compound LOH
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- '' Which of the statements A-E is NOT correct about azidothymidine (AZT), an antiviral drug? (a) The molecule contains a sigma bond formed by the overlap of a nitrogen sp orbital with a nitrogen sp2 H3C. NH orbital (b) It contains a secondary (2°) amine (c) It contains a primary (1°) alcohol (d) The molecule contains the following functional groups: alkene, amide, ether (e) It contains one atom with a +1 formal charge and one with a -1 formal charge HOH2C N=N=N2b im confused ?Which statements are true about constitutional isomers? (a) They have the same molecular formula. (b) They have the same molecular weight. (c) They have the same order of attachment of atoms. (d) They have the same physical properties
- Indicate whether each statement is true or false. (a) Butanecontains carbons that are sp2 hybridized. (b) Cyclohexaneis another name for benzene. (c) The isopropyl group containsthree sp3-hybridized carbons. (d) Olefin is anothername for alkyne.1: In the sweetening MEROX process for kerosene the mercaptans are converted into (a) Sulpher (b) Disulphide (c) Hydrogen sulphide (d) None of these 2: Which of the following products contain maximum sulphur? (a) Diesel fuel (b) Fuel oil (c) Jet fuel (d) LPG 3: Which of the following petroleum product has a maximum C/H ratio (by weight)? (a) Light diesel oil (b) Fuel oil (c) Naphtha (d) Heating oil 4: Which of the following hydrocarbon are most desirable in gasoline? (a) Paraffins (b) Isoparaffins (c) Naphthenes (d) Aromatic 5: Octane no. of paraffins: (a) Remain constant with change in the number of carbon atoms (b) Increases with increase in the number of carbon atoms (c)Decreases with increase in the number of carbon atoms (d)None of the above 6: Which of the following hydrocarbons has a maximum octane number? (a) Benzene (b) Cyclohexane (c) Hexane (d) Iso-hexane 7: Which of the following petroleum products has a minimum flashpoint? (a)Gasoline (b) Kerosene (c) Fuel oil (d) Heating…FOR/ • Ang • Tors • Ster O what structural cfects do the ff. opds exhivit? Enumate all. Then idenbify the pred ommant effect. (a) 언 NO2 (c) 1.4 S Elec
- [2] When 2-methylpentane reacts with Cl₂ how many structural isomers of formula C6H₁3Cl can from ? 1 (b) 2 (c) 3 (d) 4 ((e) 5 CI, hu rawings salv enexarfoloyo enxe enexarfobyo lydudoalThere are four dimethylcyclopropane isomers. (a) Write three-dimensional formulas for these isomers. (b) Which of the isomers are chiral? (c) If a mixture consisting of 1 mol of each of these isomers were subjected to simple gas chromatography, how many fractions would be obtained and which compounds would each fraction contain? (d) How many of these fractions would be optically active? tod o ors brie page 10 of 17Pyrethrins, such as jasmolin II(below), are a group of naturalcompounds synthesized by flowers of the genus Chrysanthemum(known as pyrethrum flowers) to act as insecticides.(a) Circle and name the functional groups in jasmolin II.(b) What is the hybridization of the numbered carbons?(c) Which, if any, of the numbered carbons are chiral centers?