This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Source of Pyridine Compounds”. 1. Which of the following plant is the natural source of pyridine? a) Atropa belladonna b) Ocimum tenuiflorum c) Azadirachta indica d) Ficus religiose 2. Why is extraction of pyridine from coal tar or as a byproduct of … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Structure of Pyridine”. 1. Pyridine is a which type of heterocyclic compound from the following options? a) Six membered heterocyclic compound b) Seven membered heterocyclic compound c) Four membered heterocyclic compound d) Five membered heterocyclic compound 2. Which element is present as … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Five Membered Rings”. 1. Which of the following is not true about the five membered rings? a) Five membered rings are more stable than 4 membered rings b) Five membered rings are more stable than 6 membered rings c) Five membered rings … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Meso Structures”. 1. Which of the following is the definition of a meso compound? a) A molecule with chirality centers which is chiral b) A chiral compound with more than one chirality center c) A diastereomer with no chirality centers d) A … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Diastereomers”. 1. Which of the following is the definition of a pair of diastereomers? a) A pair of stereoisomers each of which has two chirality centers b) Any pair of stereoisomers c) A pair of stereoisomers that are not mirror images of … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Enantiomers”. 1. Which of the following statements regarding enantiomers not true? a) All (+) enantiomers are levorotatory b) All (-) enantiomers rotate plane polarized light in a counterclockwise direction c) (+) and (-) enantiomers rotate plane polarized light in opposite directions d) … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Chirality”. 1. Which statement about a chiral compound A is incorrect? a) A racemate contains equal amounts of (+)-A and (–)-A b) If A is resolved, it is separated into its enantiomers c) (+)-A can also be labelled R-A, because (+) means … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Enantiomerism”. 1. Which of the following is the definition for enatiomerism? a) A pair of stereoisomers each of which has two chirality centres b) A pair of stereoisomers that are not mirror images of one another c) A pair of stereoisomers that … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Polarimeter”. 1. What does a polarimeter measure? a) Polarity of the substance b) Angle of rotation of an optical active compound c) Concentration of the substance d) pH of the substance 2. A solution of 0.1 g/mL of a pure R enantiomer … Read more
This set of Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Stereoisomers”. 1. What is the complete IUPAC name of the following substance? a) (1S,3S)-1-methylcyclopentane-1,3-diol b) (1R,3R)-1-methylcyclopentane-1,3-diol c) (1S,3R)-1-methylcyclopentane-1,3-diol d) (1R,3S)-1-methylcyclopentane-1,3-diol 2. How many stereoisomers are there for the following structure? a) 1 b) 2 c) 3 d) 4 3. How many stereoisomers … Read more
