Question

In: Chemistry

#1. Which following statement statements is WRONG for Benzocaine? A. It is an aromatic carboxylic ester....

#1. Which following statement statements is WRONG for Benzocaine?

A. It is an aromatic carboxylic ester.

B. Benzocaine is acidic in nature.

C. It is basic in nature.

D. Benzocaine is used to reduce the pain or discomfort caused by sore throat, teething pain, rectal irritation, hemorrhoids etc.

E. It does not show any side effects if you take more than the dose.

F. It is a colorless trapezial crystal.

a)	Benzocaine is acidic in nature.

b)	It does not show any side effects if you take more than the dose.

c)	Benzocaine is used to reduce the pain or discomfort caused by sore throat, teething pain, rectal irritation, hemorrhoids etc.

d)	It is basic in nature.

e)	It is an aromatic carboxylic ester.

f)	It is a colorless trapezial crystal.

#2: Why is sulfuric acid added in an Esterification reaction? (synthesis of benzocaine)

a. It neutralizes base produced in the reaction.

b. It pushes the reaction to completion by dehydrating the product.

c. It is used as a polar protic solvent

d. It activates the carbonyl of p-aminobenzoic acid making it more reactive.

e. A low pH is needed for the reaction to occur

a)	It is used as a polar protic solvent.

b)	It pushes the reaction to completion by dehydrating the product.

c)	It activates the carbonyl of p-aminobenzoic acid making it more reactive.

d)	A low pH is needed for the reaction to occur.

e)	It neutralizes base produced in the reaction.

#3. How many different types of proton (By looking H1 NMR spectrum) present in the Benzocaine?

	4
	5
	2
	3

#4. In the IR spectrum of Benzocaine, which peaks are representing C-O stretching bands?

	1284.32 and 1052.82 cm^-1
	1681.39 and 1635.84 cm^-1
	1476.76 and 1442.50 cm^-1
	773.71 and 743.44 cm^-1

Solutions

Expert Solution

Summery : Benzocaine is widlly used painkiller druge. Which is 3 step synthesis easilly synthised in lab by p amino benzoic acid and ethanol in Acidic medium.

queen_honey_blossom answered 7 months ago

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