Zenlabs Ethica Interview Questions and Answers

The interview question covers topics such as Lewis acid, pH, acid and base, organic chemistry, periodic table, chemical formulas, and pH measurement without a pH meter.

• Lewis acid is an electron acceptor, examples include AlCl3 and FeCl3

• pH is a measure of acidity or basicity, with a range of 0-14

• Acids donate H+ ions, bases accept H+ ions

• Organic chemistry deals with carbon-based compounds, examples include ethanol and gl...read more

Benzene is a colorless, highly flammable liquid with a sweet odor. It is a basic building block of many chemicals.

• Benzene is a hydrocarbon with the chemical formula C6H6.

• It is a natural constituent of crude oil and gasoline.

• Benzene is used in the production of plastics, synthetic fibers, rubber, dyes, detergents, and pharmaceuticals.

• Exposure to benzene can cause cancer and other health problems.

• Benzene is also a major ...read more

Water has a boiling point of 100°C and a melting point of 0°C. Other solvents have varying boiling and melting points.

• Water has a high boiling point due to its strong hydrogen bonding

• Solvents like ethanol have lower boiling points than water

• Melting points of solvents depend on their molecular structure

• Some solvents like mercury are liquid at room temperature

• Boiling and melting points are important in chemical reactions

Process safety refers to the management of hazards that can arise from industrial processes.

• It involves identifying potential hazards and implementing measures to prevent accidents

• It includes designing and maintaining equipment to prevent leaks or explosions

• It also involves training employees on safety procedures and emergency response

• Examples include chemical plants, oil refineries, and nuclear power plants

To work the blister machine, follow these steps:

• Ensure the machine is clean and free of debris

• Load the appropriate materials into the machine

• Set the machine to the desired settings

• Start the machine and monitor the process

• Remove the finished product from the machine

• Clean the machine after use

Quality control is a process that ensures products or services meet specified requirements and standards.

• Quality control involves monitoring and inspecting products or services to identify defects or deviations from standards.

• It includes setting quality standards, establishing quality control processes, and conducting inspections and tests.

• Quality control aims to prevent defects, improve product or service quality, and...read more