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Chapter 5: Q5P (page 120)

Question:Is cocaine (Worked Example 5-2) dextrorotatory or levorotatory?

Short Answer

Expert verified

Answer

Cocaine is levorotatory.

Step by step solution

01

About cocaine

An organic drug that is made up of amine, ester, and carboxylic groups is cocaine.The molecular formula of this compound is C17H21NO4.

02

About dextrorotation and levorotation

Dextrorotation is the rotation of a chemical molecule towards the right side of the plane of polarized light and levorotation is the reverse of it.

03

About the rotation of cocaine

The structure of cocaine is given below:

Cocaine

The worked example 5-2 that is cocaine is levorotatory as this molecule rotates the plane polarised light towards left.

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Most popular questions from this chapter

Ribose, an essential part of ribonucleic acid (RNA), has the following structure:

(a) How many chirality centers does ribose have? Identify them.

(b) How many stereoisomers of ribose are there?

(c) Draw the structure of the enantiomer of ribose.

(d) Draw the structure of a diastereomer of ribose.

Assign R or S stereochemistry to the chirality centers in the following

Newman projections:

Which of the following objects are chiral?

(a) A basketball

(b) A fork

(c) A wine glass

(d) A golf club

(e) A spiral staircase

(f) A snowflake

(e)

Assign R or S configuration to each chirality center in pseudoephedrine, an over-the-counter decongestant found in cold remedies (blue = N)

Identify the indicated faces in the following molecules as Re or Si:

(a)

(b)
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