10+ Sobha Interview Questions and Answers

The pH value decreases when acid is added and increases when alkali is added.

• Acids release hydrogen ions (H+) when dissolved in water, which increases the concentration of H+ ions and lowers the pH value.

• Alkalis release hydroxide ions (OH-) when dissolved in water, which decreases the concentration of H+ ions and raises the pH value.

• The pH scale ranges from 0 to 14, with 7 being neutral. Values below 7 are acidic, and values above 7 are alkaline.

• For example, adding lemon juic...read more

Handling Reactors involves proper documentation, deviation management, validation, and ensuring data integrity.

• Maintain accurate and detailed documentation of all reactor operations and processes.

• Implement a deviation management system to identify and address any deviations from standard procedures.

• Validate all reactor processes to ensure they meet regulatory requirements and industry standards.

• Ensure data integrity by implementing appropriate controls and procedures to preve...read more

SAP activity refers to the use of SAP software for business operations and management.

• SAP activity involves using SAP software for various business functions such as finance, human resources, supply chain management, and customer relationship management.

• It helps organizations streamline their processes, improve efficiency, and make data-driven decisions.

• Examples of SAP activity include creating financial reports, managing employee data, tracking inventory, and analyzing custo...read more

Provide all necessary documents and complete the application form.

• Ensure all required documents such as identification, resume, and references are included.

• Fill out the application form accurately and completely.

• Double check for any errors or missing information before submitting.

• Submit the documents and application by the deadline.

• Follow up with the organization if needed.

HPLC is a chromatography technique used to separate compounds in a mixture based on their interactions with a stationary phase and a mobile phase.

• HPLC principle involves passing a sample mixture through a column containing a stationary phase, where different compounds interact differently and are separated based on their affinity for the stationary phase.

• HPLC instrumentation includes a pump to deliver the mobile phase, a sample injector, a column where separation occurs, a de...read more

pH activity refers to the measurement of acidity or alkalinity of a solution.

• pH activity is measured on a scale of 0-14, with 7 being neutral, below 7 being acidic, and above 7 being alkaline

• It is important in various fields such as chemistry, biology, and environmental science

• For example, pH activity is used to determine the acidity of soil for agriculture, the pH of water for aquatic life, and the pH of blood for medical diagnosis

Sodium cyanide should be handled with extreme caution due to its highly toxic nature.

• Wear appropriate personal protective equipment (PPE) such as gloves, goggles, and respirators.

• Store sodium cyanide in a secure, well-ventilated area away from incompatible materials.

• Use proper handling techniques such as avoiding skin contact and not inhaling dust or fumes.

• Dispose of sodium cyanide properly according to local regulations.

• In case of exposure, seek medical attention immediately...read more

Chemical reaction between sodium and chlorine

• Sodium (Na) reacts with chlorine (Cl) to form sodium chloride (NaCl)

• The reaction is exothermic and releases energy in the form of heat and light

• The balanced chemical equation is 2Na + Cl2 -> 2NaCl

Yes, I have all the documents required for the interview.

• I have all necessary documents in a folder

• I have copies of my resume, cover letter, and references

• I have any certifications or licenses related to the position

Chromatography techniques are used to separate and analyze mixtures of compounds based on their different properties.

• Chromatography involves a stationary phase and a mobile phase.

• Different compounds in the mixture interact differently with the stationary phase, leading to separation.

• Examples include gas chromatography, liquid chromatography, and thin-layer chromatography.

Normality and molarity are different units of concentration in chemistry.

• Normality is the number of equivalents of a substance in a liter of solution, while molarity is the number of moles of a substance in a liter of solution.

• Normality is used in acid-base reactions, while molarity is used in general chemistry calculations.

• For example, a 1M solution of HCl has a normality of 1N, but a 1M solution of NaCl has a normality of 2N.

The Tff system is a new technology introduced to streamline operations and improve efficiency.

• The Tff system automates manual processes to save time and reduce errors

• It integrates data from multiple sources for better decision-making

• Training and support are provided to ensure successful implementation

Implemented various engineering solutions to address issues and improve efficiency.

• Developed new software tools to streamline processes

• Implemented automation systems to increase productivity

• Optimized equipment layouts to improve workflow

• Utilized predictive maintenance techniques to reduce downtime