Chemical Industry Questions and Answers – Synthetic Organic Chemical – Pharmaceutical Ind.

This set of Chemical Industry Multiple Choice Questions & Answers (MCQs) focuses on “Synthetic Organic Chemical – Pharmaceutical Ind.”.

1. Which of the following falls into the category of streptomycin?
a) Actinobacterium Streptomyces griseus (TB)
b) Actinomycete Saccharopolyspora erythraea
c) Actinomycete Streptomyces
d) Actinobacterium Saccharopolyspora
View Answer

Answer: a
Explanation: The one which falls into the category of streptomycin is Actinobacterium Streptomyces griseus (TB). Streptomyces griseus is a species of bacteria in the genus Streptomyces commonly found in soil.

2. Identify the correct sequence for the production of erythromycin.
a) Alkalize, centrifuge, decolorize, recrystallize, dry, sterilize
b) Alkalize, centrifuge, recrystallize, decolorize, sterilize, dry
c) Alkalize, centrifuge, decolorize, recrystallize, sterilize, dry
d) Centrifuge, alkalize, decolorize, dry, recrystallize, sterilize
View Answer

Answer: c
Explanation: First alkalize the NaOH and solvent extract, amyl acetate, in a counter-current extractor. Then, centrifugate the slime. Next, decolorize with carbon. Then, recrystallize to obtain erythromycin. Finally, sterilize through Seitz filters and dry under sterile conditions. So, the correct order is:

Alkalize, centrifuge, decolorize, recrystallize, sterilize, and dry

3. Which of the following is used in the production of Streptomycin?
a) Shell and tube heat exchangers
b) The carboxylic acid cation exchanger
c) Pressure reactors
d) U-tube reactor
View Answer

Answer: b
Explanation: During the process of Streptomycin production, the extraction of Streptomycin from the aqueous beer with concentrations of 10 to 15 mg/ml is done by ion exchange resins, namely, Carboxylic acid cation exchanger.

4. Insulin is a kind of steroid hormone.
a) True
b) False
View Answer

Answer: a
Explanation: Yes, this is a true statement. Insulin is a peptide hormone, produced by the beta cells of the pancreas, and is central to regulating carbohydrate and fat metabolism in the body. In the liver and skeletal muscles, glucose is stored as glycogen, and in fat cells, it is stored in the form of triglycerides.

5. Which of the following is not a hypnotic?
a) Phenobarbital
b) Barbital
c) Codeine
d) Procaine Hydrochloride
View Answer

Answer: d
Explanation: Procaine Hydrochloride is an anesthesia drug and not a hypnotic drug. Procaine binds as well as inhibits voltage-gated sodium channels, thereby, inhibiting the ionic flux required for the initiation and conduction of impulses.
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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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