Natco Pharma Senior Associate Interview Questions and Answers

Q1. How many types of joins in sql
Ans. 
There are four types of joins in SQL: INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
• INNER JOIN: Returns rows when there is at least one match in both tables.

• LEFT JOIN: Returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table.

• FULL JOIN: Returns rows when there is a match in one of the tables.
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Q2. Diff between list and set
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List is an ordered collection of elements with duplicates allowed, while set is an unordered collection of unique elements.
• List maintains the order of elements, while set does not guarantee any specific order.

• List allows duplicate elements, while set does not allow duplicates.

• List is implemented using classes like ArrayList, LinkedList, etc., while set is implemented using classes like HashSet, TreeSet, etc.
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Q3. Diff between map set
Ans. 
Map is a collection of key-value pairs where each key is unique, while a set is a collection of unique elements with no duplicate values.
• Map allows duplicate values but keys must be unique, while set does not allow duplicates.

• Map is accessed using keys, while set is accessed using elements.

• Example: Map - {1: 'apple', 2: 'banana'}, Set - {'apple', 'banana'}
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Q4. Write Fibonacci program
Ans. 
Fibonacci program generates the Fibonacci sequence up to a specified number of terms.
• Start with two variables initialized to 0 and 1

• Use a loop to calculate the next Fibonacci number by adding the previous two numbers

• Repeat the process until the desired number of terms is reached
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Q1. What is gmp and ngmp
Ans. 
GMP stands for Good Manufacturing Practice, which ensures products are consistently produced and controlled according to quality standards. NGMP is not a recognized term in this context.
• GMP is a set of guidelines for ensuring the quality and safety of products during manufacturing.

• GMP covers aspects such as personnel, premises, equipment, documentation, production, quality control, and more.

• Examples of industries that ...read more
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Q2. Solvent boiling point
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Q1. Tell me about your self
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Q2. Principal of HPLC and GC
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HPLC and GC are analytical techniques used in chemistry to separate, identify, and quantify components in a mixture.
• HPLC stands for High Performance Liquid Chromatography, which uses a liquid mobile phase to separate compounds based on their affinity for the stationary phase.

• GC stands for Gas Chromatography, which uses a gas mobile phase to separate compounds based on their volatility.

• Both techniques are commonly used ...read more
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Q1. How much salary are you expecting?
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Q1. What is polarity and how it effect the molecules
Ans. 
Polarity refers to the separation of electric charge within a molecule, which affects its chemical properties.
• Polarity is determined by the difference in electronegativity between atoms in a molecule.

• Polar molecules have a positive and negative end, while nonpolar molecules have an even distribution of charge.

• Polarity influences various properties of molecules, such as solubility, boiling point, and intermolecular forc...read more
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Q2. Types of chromatography
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Chromatography is a technique used to separate and analyze mixtures of substances based on their different interactions with a stationary phase and a mobile phase.
• Gas chromatography (GC) separates volatile compounds based on their vapor pressure and affinity for the stationary phase.

• Liquid chromatography (LC) separates compounds based on their polarity and affinity for the stationary phase.

• Ion exchange chromatography s...read more
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Q3. Chiral compound and its characteristics
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Chiral compounds are molecules that have a non-superimposable mirror image.
• Chiral compounds have an asymmetric carbon atom, also known as a chiral center.

• They exist in two enantiomeric forms, which are mirror images of each other.

• Chiral compounds exhibit optical activity, meaning they rotate the plane of polarized light.

• They have different physical and chemical properties from their mirror images.

• Examples of chiral com...read more
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Q1. About instument
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Q2. About instrument knowledge
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Q3. Kf gc hplc validation
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Q1. Salary discussion
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Q2. Good hr department
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My self yerravally Rakesh Goud.
My graduation bsc biotechnology in osmania university my inter Geetanjali junior college.qnd SCC ZPHS in nemtoor

My self yerravally Rakesh Goud.im came from Telangana district and my education background i studied at osmania university bsc biotechnology and intermediate Geethanjali junior college and my ssc ZPHS nemtoor current working in Sanofi Healthcare Pvt Ltd india

Q1. Basic introduction and background
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Q1. Asked some name reactions and about NMR
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