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PHAR 261 Introduction to Pharmaceutical Technology Unit Operations Quiz

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PHAR 261 Introduction to Pharmaceutical Technology Unit Operations Quiz

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Questions and Answers

Which operation involves the mechanical reduction of the size of solid particle sizes?

Granulation (correct)

Filtration

Distillation

Mixing

What is the primary purpose of unit operations in pharmaceutical technology?

To reduce the size of solid particles

To directly use active substances and excipients in drug manufacture

To make active substances and excipients suitable for use in production (correct)

To perform chemical reactions on active substances

Which unit operation involves the process of heat transfer and drying?

Distillation (correct)

Filtration

Sieving

Mixing

What does the process of granulation include?

Cutting, crushing, grinding, and comminuting Signup and view all the answers

What is the main reason for reducing the sizes of particles in pharmaceutical technology?

To improve their contact with the environmental liquid Signup and view all the answers

Which method is commonly used for reducing the size of particles through crushing in pharmacies?

Trituration Signup and view all the answers

When working with substances such as iodine and methylene blue, which type of mortar may be preferred for grinding?

Glass mortar Signup and view all the answers

What is the primary purpose of grinding by the aid of a solvent in pharmaceutical technology?

To grind adhesive substances that are difficult to grind Signup and view all the answers

Which characteristic of particles increases as their size decreases during grinding?

Hygroscopic attribute Signup and view all the answers

What should be the basis for mixing in the mortar during grinding?

Geometric dilution principle Signup and view all the answers

What is the disadvantage associated with grinding active ingredients in pharmaceutical technology?

Turn into an unstable or inactive crystal form Signup and view all the answers

What is levigation used for in pharmaceutical technology?

Preparation of dermatological and ophthalmic ointments Signup and view all the answers

What does widening circular motions of pestle in the mortar facilitate during mixing?

Even particle distribution Signup and view all the answers

Why might a porcelain mortar be preferred over a glass mortar for grinding certain substances?

For ensuring easier and better grinding due to its rough surface Signup and view all the answers

What is the primary purpose of preparing a paste through levigation in pharmaceutical technology?

To be used in preparation of dermatological and ophthalmic ointments Signup and view all the answers

What is the purpose of using widening circular motions of pestle during mixing in the mortar?

To ensure homogeneity by following geometric dilution principle Signup and view all the answers