Global Pharma Healthcare Production Chemist Interview Questions and Answers

Types of reaction

• Chemical reactions can be classified into several types based on the nature of reactants and products

• Some common types of reactions include synthesis, decomposition, combustion, displacement, and redox reactions

• Synthesis reactions combine two or more substances to form a new compound, e.g., A + B → AB

• Decomposition reactions break down a compound into its constituent elements or simpler compounds, e.g.,...read more

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

Types of reaction

• Chemical reactions can be classified into several types based on the nature of reactants and products

• Some common types of reactions include synthesis, decomposition, combustion, displacement, and redox reactions

• Synthesis reactions combine two or more substances to form a new compound, e.g., A + B → AB

• Decomposition reactions break down a compound into its constituent elements or simpler compounds, e.g.,...read more