Narmada Bio Chem Senior Microbiologist Interview Questions and Answers

Q1. What is pH and which are called acids and bases and chromatography techniques
Ans. 
pH is a measure of acidity or alkalinity in a substance. Acids donate protons, bases accept protons, and chromatography techniques separate mixtures.
• pH is a scale from 0-14 to measure acidity or alkalinity

• Acids donate protons, lowering pH (0-6.9)

• Bases accept protons, raising pH (7.1-14)

• Chromatography techniques like HPLC and GC separate mixtures based on different properties

• Examples of acids: hydrochloric acid (HCl), c...read more
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Q1. Asking about work commitment
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Q1. What is the hydroquinone structure
Ans. 
Hydroquinone is a chemical compound with the formula C6H4(OH)2, commonly used in skincare products for its skin-lightening properties.
• Chemical formula: C6H4(OH)2

• Consists of two hydroxyl groups attached to a benzene ring

• Used in skincare products to lighten dark spots and hyperpigmentation
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Q2. Waht is the sendmeya reaction
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Q1. What is the seandmeya reaction
Ans. 
The Seandmeya reaction is a chemical reaction used in organic chemistry to synthesize aldehydes from alkynes.
• The Seandmeya reaction involves the hydroboration-oxidation of an alkyne to form an enol intermediate, which tautomerizes to the aldehyde.

• The reaction is often used in the synthesis of complex molecules and natural products.

• An example of the Seandmeya reaction is the conversion of 1-octyne to octanal using BH3 a...read more
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Q1. When will you get married
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Q2. When get the job
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Q1. Tell me something about your self Why you want to leave your company Salary expection
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Q1. Basic chemistry questions Instrumental questions Safety based some questions Chemical preparations Water analysis
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What is the term called directing groups ? Like this basic organic questions and reactions

Q1. Personal details and basic organic questions
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Q2. Structure of organic compounds and mechanism
Ans. 
Organic compounds are composed of carbon atoms bonded together in various arrangements, with different functional groups determining their properties.
• Organic compounds contain carbon atoms bonded together in various structures

• Functional groups such as alcohols, aldehydes, ketones, and carboxylic acids determine the properties of organic compounds

• Mechanisms in organic chemistry involve the breaking and forming of chemic...read more
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Q3. Write about chlorination reagents
Ans. 
Chlorination reagents are chemicals used to introduce chlorine atoms into organic compounds.
• Chlorine gas (Cl2) is a common chlorination reagent used in organic synthesis

• N-chlorosuccinimide (NCS) is another popular chlorination reagent

• Thionyl chloride (SOCl2) is used for chlorination of alcohols to form alkyl chlorides
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Q4. What are the main part of HPLC
Ans. 
Main parts of HPLC include pump, injector, column, detector, and data system.
• Pump - used to deliver the mobile phase at a constant flow rate

• Injector - introduces the sample into the column

• Column - where the separation of compounds occurs

• Detector - detects the separated compounds as they elute from the column

• Data system - records and analyzes the detector output
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Q5. Do you have knowledgeable about distillation
Ans. 
Yes, I have knowledge about distillation and its principles.
• I am familiar with the process of separating components of a liquid mixture based on differences in boiling points.

• I understand the setup and operation of distillation equipment such as distillation columns and condensers.

• I am aware of different types of distillation techniques like simple distillation, fractional distillation, and steam distillation.
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Why are you looking for a change?
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Q1. Fermentation operation. What test you know in microbiology. What is prebiotic and probiotic
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