Question

#40, 41, 44, 45 please

HANDEDNESS IN MOLECULES 18.40 What does the term chiral mean? Give two examples. 18.41 What does the term achiral mean? Give two examples. 18.42 Which of the following objects are chiral? (a) A mayonnaise jar (b) A rocking chair (c) A coin 18.43 Which of the following objects are achiral? (a) A pair of scissors (b) A comb (c) A vase 18.44 Draw the structures of the following compounds. Which of them is chiral? Mark each chiral carbon with an asterisk. (a) 2-Bromo-2-chloropropane (b) 2-Bromo-2-chlorobutane (c) 2-Bromo-2-chloro-3-methylbutane 18.45 Draw the structures of the following compounds Which of them is chiral? Mark each chiral carbon with an asterisk. (a) 2-Chloropentane (b) Cyclopentane (c) 2-Methylpropanol 18.46 Which of the carbon atoms marked with arrows in the following compound are chiral? 18. 18.5 18.59 CHCHCH.CH 18.60

Answer 1

Чо Chiral molecules are non superimposable on the mirror image of the molecule. Chirality can be indicated by assymeture carbon center Eg: cool i coor H-e-R R C -H NH₂ 1 NH2 or non superimposable mirror inapes your hands are mirror énages but they are not super imposable. Achiral means identical and superimposable on its mirror image There is Eg: a nail is achinal a round glass a a ball. achinal molecules 4 I 4 h n a) He-ċ-ċ-ċ-ċ-H pent - 5 cambouchain 2-chloro и ин n 5c chain fyldic ) cyclopentane c) H-C-(-(-0h2 methyl propand. ин,