a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?8 28573
all types of questions asked at the cipla interview3252
In acid base titration, after complet consumption of HCl by NaOH, addition of next drop of NaOH will give pink colour with phenolpthalein indicator. Why this pink colour appear? Why not blue, black, green or anything elese?3 7298
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?3 4211
how to pepare 6.8 pH phosphate buffer10 61595
what is pK & pKa value3 9433
what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?6 6817
What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?4 29605
What is difference between Primary and secodary reference standard?2 14882
WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER8 17137
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate1 2738
what is mass spectra ? why it is necessary ?1 3637
difference between IR & NMR spectroscopy ?9 31156
how to get accurate result for Residue on evaporation in purified water
During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?
can i use hplc detector to uplc and why?
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
Which is the highly polar and highly non polar column in HPLC?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
what is partion and column chromatography
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
what is the origin to prepare standard operating procedure
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
Qc interview questions
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.