Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

General Chemistry (478)
Chemistry AllOther (190)

Chemistry Interview Questions

Questions Answers Views Company eMail

Why dissolution test apparatus calibration with salycilic acid tablets was stopped by FDA&USP from the year of 2009?

Aurobindo,

1 9107

What is UV cut off?

Sanmar,

1 3739

What is the importance of sulphated ash test?

1 4953

What is impurities in pharma analysis?

1 2559

What are the different zones in stability according to ICH?

Apotex,

1 2875

According to ICH,India is coming under which climatic zones?

Cipla,

1 3291

How does GC did work?

1 2542

Which detector is used in uv-vis spectrophotometer?

Glenmark,

1 9872

Why chromic acid wash is not recommended by USP for glassware cleaning?

Lupin,

1 2558

What is the difference between ROI & sulphates ash?

1 3408

What is difference between NDA & ANDA ?

Alembic,

1 4312

What is Rf value& Rx value in TLC?

Abbott,

1 9732

What are the six USP melting point reference standards?

1 2899

What is the size of capillary tube used for analysing melting point?

Apotex,

1 2817

What is the difference between drug product and drug substance?

Apotex,

1 3037

Un-Answered Questions { Chemistry }

What is density of a liquid?

1057

seminal on pyrimidine

2141

calibrtion procedue of LC-MS

2669

What are the differences between chemical and electrochemical corrosion? : Electrochemistry Corrosion

1039

What is the formula for relative diffrence for standard solution in solution stability in validation?

740

what is the difference between elctrefining and electrolysis?

2184

If combination product how require to identify which imp is of which api?

791

In which situation we require to prepare the standard solution from sample in Related substance method?

714

Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1520

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

837

What is similarity factor and its use in api strength?

1250

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2831

Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?

1110

What forms the basis for colorimetric determination?

1125

What can be the supporter of combustion except oxygen.

2760

For More Un-Answered { Chemistry } Questions Click Here