TCS Senior Lab Chemist Interview Questions and Answers

pH is a measure of the acidity or alkalinity of a solution, indicating its hydrogen ion concentration.

• pH scale ranges from 0 to 14, with 7 being neutral.

• A pH less than 7 indicates acidity (e.g., lemon juice has a pH of about 2).

• A pH greater than 7 indicates alkalinity (e.g., baking soda has a pH of about 9).

• pH is crucial in various fields, including chemistry, biology, and environmental science.

Chemistry is the scientific study of matter, its properties, composition, and the changes it undergoes during chemical reactions.

• Chemistry explores the structure and behavior of atoms and molecules.

• It is divided into branches like organic, inorganic, physical, analytical, and biochemistry.

• For example, organic chemistry focuses on carbon-containing compounds, such as hydrocarbons.

• In pharmaceuticals, chemistry is crucial...read more