Chemistry Interview Questions
Questions Answers Views Company eMail

what is lithipone?

Dr Reddys, Lupin, ONGC, Reddy Labs, Jubilant,

6 16064

what is redox potential of an organic compound?

Dr Reddys, Glenmark, Lupin, Reddy Labs,

2 13601

what is saponification of oils?

Cipla, Indian Potash Limited,

2 12521




How 'salting out' process is used in extraction?

PH.D Interview,

2 14177

What are geometrical isomerism? Explain them with an example?

PH.D Interview,

1 10581

Mention the factors affecting solubility of compounds?

PH.D Interview,

9 11945

NH2-CH2-COOH belongs to what structure?

Dr Reddys,

11 21251

what are ligases?which type of reactions they will catalyse?

1 4912

what happens when aminoacids react with alcohols?

GVK, Reddy Labs, Pharmaceutical, GVK Biosciences,

3 12911

what is the difference between coordinate covalent bond and covalent bond?

Flamingo Pharmaceuticals,

9 26857

what are the 4 classes of unsaturated fatty acids?

Snowcem Paints, College School Exams Tests,

1 3716

why the atomic weights are in fractions?

1 5138

Which is useful in the manufacture of Insectisides?

RR Enterprises,

2 4781

The Name Benzene was Proposed By?

Cipla, GVK, Torrent Pharma,

21 17615

Number of Sigma Bonds Present in Benzene are same as ..?

Cipla,

13 15249







Un-Answered Questions { Chemistry }

How to choose the which salt is suitable for mobilephase

1746


how much mass should be there in volumetric flask while in preparation of sample for assay? 

1235


What is control room temperature and which guide line says?

401


hi i got i 20 from sacred heart university u.s.a.i got good tofel score and my gre is score is very poor.my university requirement is only tofel.i completed my b.pharmacy in 2009 so i got 1 year gap is their chances to reject visa?what i have to do i was very tensed.how to sought out my problem

1202


acceptance criteria for lod & loq by standard deviation of response and slope??

1235






WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1223


calibrtion procedue of LC-MS

1319


How to do regeneration of Metacarb Pb plus column?

1316


naphtha and hexane mixture can be used a fuel or not

1165


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

1154


What is aggregate and fragments in SEC?

703


Which is the highly polar and highly non polar column in HPLC?

864


In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

355


Explain the relations between number of carbon atoms in alkanes and retention time ?

713


In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

782