SAI Life Sciences Interview Questions, Process, and Tips

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Q1. What is what they asked
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Q2. What is where they asked
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Q1. What is what they asked
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Q2. What is what they asked kwe
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Q1. What is NBS structure
Ans. 
NBS (N-bromosuccinimide) is a chemical compound used as a brominating agent in organic chemistry.
• NBS is a white crystalline solid

• It is commonly used in organic synthesis to selectively brominate allylic and benzylic positions

• NBS is often used in conjunction with a radical initiator like AIBN to generate bromine radicals
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Q2. What is pyridine structure
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Pyridine is a heterocyclic aromatic compound with a six-membered ring containing five carbon atoms and one nitrogen atom.
• Pyridine has a molecular formula of C5H5N

• It is a colorless liquid with a strong odor similar to fish

• Pyridine is commonly used as a solvent and precursor in organic synthesis
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Q3. 3 bromo pyridine
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Q4. Adding in n-buli nd dmf how to convertion
Ans. 
n-Buli and DMF can be used to convert certain functional groups through deprotonation and subsequent reactions.
• n-Buli is a strong base commonly used for deprotonation reactions.

• DMF (dimethylformamide) is a polar aprotic solvent that can facilitate reactions.

• The combination of n-Buli and DMF can be used to convert certain functional groups such as alkyl halides to alkyl lithium compounds.

• Care must be taken when handling
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Q5. Aldehyde to wittig reagent how to convertion
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Aldehydes can be converted to Wittig reagents through a two-step process involving the formation of a phosphonium ylide.
• React aldehyde with a phosphonium salt to form a phosphonium ylide

• React the phosphonium ylide with an appropriate carbonyl compound to form the Wittig reagent

• The Wittig reagent can then be used in a Wittig reaction to form an alkene product

• Example: Conversion of benzaldehyde to benzylidene triphenylph
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Q6. I workingin scheme
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Q1. Can you describe NMR and how to interpret data
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NMR is a technique used to analyze the structure and purity of molecules by measuring the magnetic properties of atomic nuclei.
• NMR stands for Nuclear Magnetic Resonance and involves applying a magnetic field to a sample to measure the resonance frequencies of atomic nuclei.

• Interpreting NMR data involves analyzing the chemical shifts, coupling constants, and peak integrations to determine the structure and purity of the...read more
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Q1. A situation where you were met under timed conditions and resolved that problem
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Q1. Presentation of your research work
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