Baker Hughes Interview Questions and Answers

Distillation is a process of separating components of a mixture based on their boiling points.

• The mixture is heated to vaporize the component with the lowest boiling point

• The vapor is then condensed and collected as a separate liquid

• This process is repeated for each component with a higher boiling point

• Example: Separating ethanol and water in alcoholic beverages

• Ethanol has a lower boiling point than water, so it vaporizes first and is collected as a separate liquid

Phenol is a white crystalline solid with a distinct odor and is soluble in water.

• Phenol is highly reactive and can cause severe burns upon contact with skin.

• It is used as a disinfectant and in the production of plastics, resins, and pharmaceuticals.

• Phenol is toxic and can cause respiratory and neurological problems if inhaled.

• It can also cause liver and kidney damage if ingested.

• Phenol is a weak acid and can react with bases to form salts called phenolates.

Amphoteric behavior refers to the ability of a substance to act as both an acid and a base.

• Amphoteric substances can donate or accept protons depending on the reaction conditions.

• Examples of amphoteric substances include water, amino acids, and metal oxides.

• Amphoteric behavior is important in many chemical reactions and in biological systems.

• The pH of the solution can determine whether an amphoteric substance will act as an acid or a base.

Base refers to the foundation or starting point of something.

• Base is the fundamental component of any structure or system.

• It is the starting point from which everything else is built upon.

• In chemistry, a base is a substance that can accept hydrogen ions.

• Examples of bases include sodium hydroxide, ammonia, and baking soda.

Acid is a chemical substance with a pH less than 7, which can dissolve metals and burn skin.

• Acids release hydrogen ions (H+) when dissolved in water

• Common examples include hydrochloric acid, sulfuric acid, and acetic acid

• Acids can react with bases to form salts and water

• Acids can be corrosive and harmful to living organisms

• Acids are used in various industries, such as food production and metal cleaning