Aarti Industries Interview Questions and Answers for Freshers

Q1. What is Heat of formation
Ans. 
Heat of formation is the energy released or absorbed when one mole of a compound is formed from its elements in their standard states.
• Heat of formation is also known as standard enthalpy of formation.

• It is typically measured in units of kJ/mol.

• Negative heat of formation indicates exothermic reaction, while positive heat of formation indicates endothermic reaction.

• For example, the heat of formation of water (H2O) is -28...read more
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Q2. What is heat of reaction
Ans. 
Heat of reaction is the amount of heat released or absorbed during a chemical reaction.
• Heat of reaction can be exothermic (heat released) or endothermic (heat absorbed).

• It is typically measured in units of joules or calories.

• Examples include combustion reactions releasing heat and photosynthesis reactions absorbing heat.
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It's a written examination in which the contain was that basic chemistry fundamentals. That's it.

Q1. What is spectroscopy?
Ans. 
Spectroscopy is the study of the interaction between matter and electromagnetic radiation.
• It involves analyzing the absorption, emission, or scattering of light by atoms or molecules.

• Different types of spectroscopy include UV-Vis, IR, NMR, and mass spectrometry.

• Spectroscopy is used in various fields such as chemistry, physics, astronomy, and environmental science.
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Q2. What is chromatography?
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Chromatography is a technique used to separate and analyze mixtures of chemicals based on their 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 paper chromatography
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Q3. Give brief description of HPCL & GC.
Ans. 
HPCL is a leading oil and gas company in India, while GC stands for Gas Chromatography used in chemical analysis.
• HPCL (Hindustan Petroleum Corporation Limited) is a Navratna oil and gas company in India.

• It is a Fortune Global 500 company and has a strong presence in refining, marketing, and distribution of petroleum products.

• GC (Gas Chromatography) is a technique used for separating and analyzing compounds in a mixture...read more
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Q4. What is molarity & molality?
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Molarity is the concentration of a solution expressed as the number of moles of solute per liter of solution. Molality is the concentration of a solution expressed as the number of moles of solute per kilogram of solvent.
• Molarity is measured in moles per liter (M)

• Molality is measured in moles per kilogram (m)

• Molarity changes with temperature due to volume changes, while molality remains constant

• Molarity is commonly use...read more
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Q5. Write the grignard reaction with its mechanism & give brief description.
Ans. 
Grignard reaction involves the addition of an organomagnesium halide to a carbonyl compound to form a new carbon-carbon bond.
• Formation of Grignard reagent by reacting magnesium with an alkyl or aryl halide

• Addition of the Grignard reagent to a carbonyl compound to form a tertiary alcohol

• Mechanism involves nucleophilic addition of the Grignard reagent to the carbonyl carbon

• Commonly used in organic synthesis to create com...read more
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Q6. What is polar solvents?
Ans. 
Polar solvents are substances that have a positive and negative charge distribution, making them capable of dissolving polar compounds.
• Polar solvents have a partial positive and partial negative charge, allowing them to interact with polar molecules.

• Examples of polar solvents include water, acetone, ethanol, and methanol.

• These solvents are commonly used in various chemical reactions and processes due to their ability t...read more
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Q7. What is protic polar solvents?
Ans. 
Protic polar solvents are solvents that contain hydrogen atoms connected directly to an electronegative atom, such as oxygen or nitrogen.
• Protic polar solvents have a partial positive charge on the hydrogen atom and a partial negative charge on the electronegative atom.

• These solvents are capable of forming hydrogen bonds with solutes, making them useful in various chemical reactions.

• Examples of protic polar solvents inc...read more
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Q1. Give me your brief introduction.
Ans. 
I am a recent graduate with a strong academic background in business administration and a passion for learning and growth.
• Recent graduate with a degree in business administration

• Passionate about learning and growth

• Strong academic background

• Eager to start a career in the business field
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Q2. What is your strength and weeknees.
Ans. 
My strength is my strong work ethic and attention to detail. My weakness is that I can be overly critical of my own work.
• Strength: Strong work ethic - always willing to put in extra effort to get the job done

• Strength: Attention to detail - I ensure that all tasks are completed accurately and thoroughly

• Weakness: Overly critical of my own work - I sometimes struggle to recognize my own accomplishments
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Q3. How many times you work in our organization?
Ans. 
I have not worked in your organization before.
• I have not had the opportunity to work in your organization yet.

• I am excited about the possibility of starting my career with your organization.

• I am eager to learn and grow within your company.
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Q4. How many button are present in your shirt?
Ans. 
There are 7 buttons on my shirt.
• There are typically 7 buttons on a men's dress shirt.

• The number of buttons may vary depending on the style and design of the shirt.

• Buttons are used for fastening the shirt and can be made of various materials like plastic, metal, or mother of pearl.
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Q1. How many type of reactor
Ans. 
There are several types of reactors used in chemical processes, each serving specific functions and applications.
• Batch Reactors: Used for small-scale production, e.g., pharmaceuticals.

• Continuous Stirred Tank Reactors (CSTR): Ideal for continuous processes, e.g., wastewater treatment.

• Plug Flow Reactors (PFR): Suitable for high conversion rates, e.g., polymer production.

• Fixed Bed Reactors: Common in catalytic processes, ...read more
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Q2. What is Dihidration and reaction
Ans. 
Dehydration is the removal of water from a substance, often resulting in a chemical reaction or change in state.
• Dehydration can occur in organic compounds, such as the formation of alkenes from alcohols.

• An example is the dehydration of ethanol to produce ethylene (C2H4).

• In biological systems, dehydration synthesis is a process where two molecules are joined by the removal of water.

• Dehydration reactions are commonly use...read more
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Q3. What is this boling point
Ans. 
The boiling point is the temperature at which a liquid's vapor pressure equals atmospheric pressure, causing it to transition to gas.
• Boiling point varies with atmospheric pressure; higher pressure raises the boiling point.

• Water boils at 100°C (212°F) at sea level but at lower temperatures at higher altitudes.

• Different substances have different boiling points; for example, ethanol boils at 78.37°C (173.07°F).

• Boiling poi...read more
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Q4. What is this ejector system
Ans. 
An ejector system uses high-velocity fluid to create a vacuum or move materials, commonly used in chemical and industrial processes.
• Utilizes the principle of momentum transfer to create suction.

• Commonly used in vacuum systems, such as in distillation processes.

• Can handle gases, vapors, and liquids, making it versatile.

• Examples include steam ejectors in power plants and water ejectors in wastewater treatment.
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Q5. Vaccum pressure or air pressure me different
Ans. A vacuum is any pressure less than the local atmospheric pressure
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Q6. What is this disttlion
Ans. Process of separating the components of a liquid mixture through selective evaporation and condensation
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Q1. Salary discussion and 6 month salary silip
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Q2. Safety discussion and old company experience
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Q1. Question about study.
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Q2. Organic & Analytical
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