Coral Laboratories Engineering Officer Interview Questions and Answers

Line clearance is necessary to prevent cross-contamination and ensure product quality by verifying that the production area is clean and ready for the next batch.

• Prevents cross-contamination between different products or batches

• Verifies that the production area is clean and free of any residues

• Ensures that equipment is properly sanitized before starting a new batch

• Confirms that all materials and components are in the c

Stability studies are conducted to evaluate the shelf life and storage conditions of a product.

• Stability studies help determine how long a product can be stored without significant changes in quality or efficacy.

• They are important for establishing expiration dates and storage instructions.

• Factors such as temperature, humidity, light exposure, and packaging materials are considered in stability studies.

• Results of stabil...read more

Validation is the process of ensuring that a product or system meets the requirements and specifications set for it.

• Validation confirms that the product meets the customer's needs and expectations

• It involves testing the product under real-world conditions

• Validation is often done at the end of the development process to ensure the product is ready for release

The formula of benzene is C6H6.

• Benzene consists of a ring of six carbon atoms, each bonded to one hydrogen atom.

• The molecular formula for benzene is C6H6.

• The structural formula of benzene is represented as a hexagon with alternating double bonds.

Toluene can be prepared by the catalytic reforming of petroleum naphtha.

• Toluene is commonly produced by the catalytic reforming of petroleum naphtha.

• The process involves heating the naphtha to high temperatures in the presence of a catalyst.

• The resulting mixture is then distilled to separate out the toluene.

• Another method involves the methylation of benzene using methanol in the presence of a catalyst.

The formula of benzene is C6H6.

• The molecular formula of benzene is C6H6.

• It consists of a ring of six carbon atoms, each bonded to one hydrogen atom.

• The structure of benzene is often represented as a hexagon with a circle inside to show delocalized electrons.

• Benzene is a common organic compound used in various industries.

Benzoic acid can be prepared by oxidizing toluene or benzyl alcohol.

• Prepare a mixture of toluene or benzyl alcohol with potassium permanganate or chromic acid.

• Heat the mixture under reflux to facilitate oxidation.

• After completion of the reaction, cool the mixture and extract the benzoic acid using a suitable solvent.

• Purify the extracted benzoic acid through recrystallization.

• Alternatively, benzoic acid can also be prep...read more