Merck Group Software Developer Intern Interview Questions and Answers

Q1. About hplc and its priciple?
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Q2. UV and its principle?
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UV stands for ultraviolet and its principle involves electromagnetic radiation with a wavelength shorter than that of visible light.
• UV radiation is divided into UVA, UVB, and UVC based on their wavelengths.

• UV radiation is commonly known for its effects on skin, such as sunburn and skin cancer.

• UV radiation is also used for disinfection purposes, such as in water treatment and sterilization.
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Q3. What is pH of water?
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The pH of water is typically around 7, which is considered neutral.
• The pH scale ranges from 0 to 14, with 7 being neutral, below 7 acidic, and above 7 basic.

• Pure water has a pH of 7, but this can vary due to dissolved minerals or gases.

• Acidic water has a pH below 7, while basic water has a pH above 7.
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Q1. Nothing, only insulting the employee
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Q2. They treat you like you know nothing
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Basic questions on maths and reasoning

Basic oops question

Q1. It was a screening test based on resume
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Q1. Basic hr questions
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Q1. What is dependency injections
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Dependency injection is a design pattern used to remove hard-coded dependencies and make code more modular and testable.
• Dependency injection involves passing dependencies to a class or method from an external source rather than creating them internally.

• This allows for easier testing and swapping of dependencies without changing the code.

• There are three types of dependency injection: constructor injection, setter inject...read more
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Q2. What is cloud services
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Cloud services refer to the delivery of computing services over the internet.
• Cloud services allow users to access and use software and hardware resources remotely

• They are typically provided by third-party providers who manage the infrastructure and maintenance

• Examples of cloud services include Amazon Web Services, Microsoft Azure, and Google Cloud Platform
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Q3. What’s is interface and abstract class ?
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An interface is a contract that specifies the methods that a class must implement. An abstract class is a class that cannot be instantiated.
• An interface can be implemented by multiple classes, while a class can only inherit from one abstract class.

• Interfaces can only have abstract methods and constants, while abstract classes can have both abstract and concrete methods.

• Interfaces are used to achieve abstraction and pol...read more
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Q4. What are generics in c#
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Generics in C# allow for type-safe programming and code reusability.
• Generics enable the creation of classes, interfaces, and methods that can work with any data type.

• They provide compile-time type safety and eliminate the need for type casting.

• Examples include List, Dictionary, and Nullable.

• Generics can improve code performance by reducing the need for boxing and unboxing.

• They also promote code reusabilit
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Q1. Salary expectation and when you will join
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Q1. Introduction and your profile related questions
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Q1. ICH guidline of pharma
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Q2. Self goal with company goal
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Aligning personal goals with company goals to drive mutual success
• Setting personal goals that contribute to achieving company objectives

• Regularly reviewing progress towards both personal and company goals

• Seeking opportunities to align individual strengths with organizational needs

• Collaborating with team members to ensure collective efforts support company mission

• Celebrating achievements that benefit both personal growt
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Q3. Industrial visit experience
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Visited a manufacturing plant to observe production processes and learn about industry practices.
• Learned about the different stages of production

• Observed how raw materials are transformed into finished products

• Interacted with industry professionals to gain insights into the manufacturing sector
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Q4. Family back ground and native information
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Q5. Hobbies and passion
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Q1. What ever I was mentioning in my resume from toward the questions
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Q2. Explain about UV, IR, KF, polarimeter with principle and functions
Ans. 
UV, IR, KF, and polarimeter are analytical instruments used for different types of analysis based on principles of light absorption, emission, and rotation.
• UV (Ultraviolet) spectrophotometer measures the absorption of ultraviolet light by a sample to determine its concentration or purity.

• IR (Infrared) spectrophotometer measures the absorption of infrared light by a sample to identify functional groups in organic compou...read more
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Q3. Calibration of analytical balance
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Calibration of analytical balance is essential for accurate measurements in analytical chemistry.
• Calibration involves comparing the readings of the balance to known weights.

• Regular calibration ensures accuracy and reliability of measurements.

• Adjustments may be needed if the balance readings deviate from the known weights.

• Calibration should be done using a proper calibration weight and following manufacturer's instructi...read more
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Q4. What is the range of PH and explain about calibration
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PH range is 0-14. Calibration ensures accuracy by adjusting the PH meter to known standards.
• PH range is from 0 to 14, with 7 being neutral

• Acidic solutions have a PH below 7, while alkaline solutions have a PH above 7

• Calibration involves adjusting the PH meter using buffer solutions of known PH values

• Regular calibration ensures accurate PH measurements
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Q1. Waiting for HR round
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