Bharat Biotech International
10+ National Excellence For Construction & Energy Co. Interview Questions and Answers
Q1. HPLC principle and types of chromatography techniques?
HPLC is a technique used to separate, identify, and quantify components in a mixture. There are various types of chromatography techniques.
HPLC stands for High Performance Liquid Chromatography
It involves the separation of components in a mixture based on their interaction with a stationary phase and a mobile phase
Other types of chromatography include gas chromatography, ion exchange chromatography, and size exclusion chromatography
HPLC is commonly used in pharmaceuticals, fo...read more
Q2. Tel me about pH range for solutions?
pH range for solutions is a measure of acidity or alkalinity on a scale of 0-14.
A pH of 7 is neutral, below 7 is acidic, and above 7 is alkaline.
Acidic solutions have a pH below 7, such as lemon juice (pH 2) or vinegar (pH 3).
Alkaline solutions have a pH above 7, such as baking soda (pH 9) or bleach (pH 12).
The pH range is important in many fields, including chemistry, biology, and environmental science.
Q3. Principle of Uv-vis spectroscopy?
UV-Vis spectroscopy is a technique that measures the absorption of ultraviolet and visible light by a sample.
UV-Vis spectroscopy is used to determine the concentration of a sample, as well as its purity and identity.
It works by passing light through a sample and measuring the amount of light absorbed at different wavelengths.
The resulting spectrum can be used to identify functional groups and chemical bonds in the sample.
UV-Vis spectroscopy is commonly used in chemistry, bioc...read more
Q4. Types of volumetric titrations?
Volumetric titrations are of different types based on the nature of the reaction involved.
Acid-base titration
Redox titration
Complexometric titration
Precipitation titration
Non-aqueous titration
Q5. KF autotitrator handling and principle?
KF autotitrator is an instrument used for determining water content in a sample by titration with Karl Fischer reagent.
KF autotitrator uses Karl Fischer reagent to determine water content in a sample
It is an automated titration instrument
The principle behind KF autotitrator is based on the reaction between iodine and sulfur dioxide in the presence of water
The instrument measures the amount of reagent required to reach the endpoint of the reaction
It is commonly used in industr...read more
Q6. Potentiometry principle and handling?
Potentiometry is a method of measuring the potential difference between two electrodes in a solution to determine the concentration of an ion.
Potentiometry is based on the principle that the potential difference between two electrodes in a solution is proportional to the concentration of an ion.
It is commonly used in analytical chemistry to measure the concentration of ions in a solution.
Potentiometry can be used to measure the pH of a solution by using a pH electrode.
Handlin...read more
Q7. Volumetric solutions preparations?
Volumetric solutions are prepared by accurately measuring the volume of a solute and dissolving it in a solvent to a known volume.
Volumetric solutions are used in analytical chemistry for titrations and other quantitative analyses.
The solute is usually a solid or liquid that is weighed on a balance before being added to the solvent.
The solvent is typically water, but other solvents may be used depending on the solute being dissolved.
The final volume of the solution is determi...read more
Q8. What is track and trace
Track and trace is a system used to monitor and trace the movement of goods or products throughout the supply chain.
Track and trace involves assigning unique identifiers to products or packages to track their location and movement.
It helps in ensuring product authenticity, preventing counterfeiting, and improving supply chain visibility.
Examples include barcodes, QR codes, RFID tags, and serial numbers used for tracking products from manufacturing to delivery.
Q9. Why importance cleaning
Cleaning is important for maintaining hygiene, preventing illnesses, and creating a pleasant environment.
Cleaning helps prevent the spread of germs and bacteria, reducing the risk of illnesses.
Regular cleaning can improve indoor air quality and reduce allergens.
A clean environment can boost productivity and overall well-being.
Proper cleaning and disinfection are crucial in healthcare settings to prevent infections.
Cleaning also helps maintain the condition and longevity of su...read more
Q10. Production process plan
The production process plan outlines the steps and resources needed to manufacture a product efficiently.
Identify the required materials and resources
Create a timeline for each step of the production process
Assign tasks to specific team members or departments
Implement quality control measures to ensure product consistency
Regularly review and adjust the production process plan as needed
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