Aarti Drugs Interview Questions and Answers

Q1. What is the formula of benzene.
Ans. 
The formula of benzene is C6H6.
• Benzene consists of a ring of six carbon atoms, each bonded to one hydrogen atom.

• The molecular formula for benzene is C6H6.

• The structural formula of benzene is represented as a hexagon with alternating double bonds.
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Q2. How to prepare toluen
Ans. 
Toluene can be prepared by the catalytic reforming of petroleum naphtha.
• Toluene is commonly produced by the catalytic reforming of petroleum naphtha.

• The process involves heating the naphtha to high temperatures in the presence of a catalyst.

• The resulting mixture is then distilled to separate out the toluene.

• Another method involves the methylation of benzene using methanol in the presence of a catalyst.
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Q1. What is the formula of benzene .
Ans. 
The formula of benzene is C6H6.
• The molecular formula of benzene is C6H6.

• It consists of a ring of six carbon atoms, each bonded to one hydrogen atom.

• The structure of benzene is often represented as a hexagon with a circle inside to show delocalized electrons.

• Benzene is a common organic compound used in various industries.
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Q2. How to prepare Benzoic acid.
Ans. 
Benzoic acid can be prepared by oxidizing toluene or benzyl alcohol.
• Prepare a mixture of toluene or benzyl alcohol with potassium permanganate or chromic acid.

• Heat the mixture under reflux to facilitate oxidation.

• After completion of the reaction, cool the mixture and extract the benzoic acid using a suitable solvent.

• Purify the extracted benzoic acid through recrystallization.

• Alternatively, benzoic acid can also be prep...read more
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Q1. Where are you from and what's your family background
Ans. 
I am from a small town in the Midwest and my family background is a mix of European and Native American heritage.
• I grew up in a close-knit community in the Midwest

• My family has a diverse background with roots in Europe and Native American heritage

• I have strong family values and traditions that have shaped who I am today
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Q2. What salary do you expect
Ans. 
I expect a competitive salary based on my experience, skills, and the industry standard.
• Research industry standards for the position

• Consider your experience and skills

• Be prepared to negotiate based on the job responsibilities and benefits package
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Q1. 1. Define ph 2 range of ph 3.exothermic reaction 4. Endothermic reaction 5.grinard reaction 6. Normality 7. Molarity 8. Molality
Ans. 
Answers to various chemistry-related questions including pH, exothermic and endothermic reactions, Grignard reaction, normality, molarity, and molality.
• pH is a measure of the acidity or alkalinity of a solution, with a range of 0-14.

• Exothermic reactions release heat energy, while endothermic reactions absorb heat energy.

• Grignard reaction involves the addition of an organomagnesium compound to a carbonyl group.

• Normality...read more
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Q2. 0 to 6.9 Acidic 7 to 14 basic
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Q3. Overall standard enthalpy change delta H
Ans. 
Overall standard enthalpy change delta H is a measure of the heat energy released or absorbed during a chemical reaction.
• Overall standard enthalpy change delta H is denoted by the symbol delta H.

• It represents the difference in enthalpy between the products and reactants in a chemical reaction.

• A negative delta H indicates an exothermic reaction, where heat is released.

• A positive delta H indicates an endothermic reaction...read more
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Q4. Endothermic is a chemical reaction which reactant absorb the energy from product surrounding
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Q1. Talk about company policies
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Basic and other questions , books questions, sums

Q1. All basics questions hear transfer , mass transfer and other all
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Q2. Safety question , msds
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Q1. Familiar question and ctc
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Q2. Expectd ctc and current ctc
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Q1. Star delta Starter control diagram
Ans. 
Star delta starter is a method used to reduce the starting current of induction motors.
• Star delta starter is used for starting induction motors in applications where the starting current needs to be limited.

• In star connection, the motor windings are connected in a star configuration during starting to reduce the voltage across each winding.

• After a certain time, the windings are switched to a delta configuration to run ...read more
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Q2. How to find motor current formulas
Ans. 
Motor current formulas can be found using basic electrical principles and motor specifications.
• Use Ohm's Law (I = V / R) to calculate current based on voltage and resistance.

• For AC motors, use the formula I = P / (sqrt(3) * V * cos(theta)), where P is power, V is voltage, and theta is the power factor angle.

• Refer to motor datasheets for specific current ratings and calculations.

• Consider factors like efficiency, power f...read more
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Q3. Protection in a transformer
Ans. 
Protection in a transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.
• Use fuses or circuit breakers to protect against overcurrent

• Install surge arresters to protect against overvoltage

• Use temperature sensors and cooling systems to prevent overheating

• Implement differential protection to detect internal faults

• Regular maintenance and testing to ensure proper functioning
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Q4. Faults in a transformer
Ans. 
Faults in a transformer can include short circuits, open circuits, overheating, and insulation breakdown.
• Short circuits can occur due to insulation failure or winding damage.

• Open circuits can result from broken connections or faulty windings.

• Overheating may be caused by overloading or poor cooling.

• Insulation breakdown can lead to arcing and short circuits.
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