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Sciences Interview Questions
Questions Answers Views Company eMail

why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?

Avra, Granules, Orchid,

5 22043

What is method validation in quality control

Alchem,

1 5039

Why we use uracil and caffeine in hplc calibration

Alchem, Reddy Labs,

6 30005

hplc assay limit 98.0 to 105 why

Aurobindo, Hetero,

2 14165

uv,ri,pda detactor principles ?

Aurobindo, Mankind, ZCL Chemicals,

1 4502

ex:this product used c18 column but same product used c8 column what happend ?

Hygro Chemicals,

2 6799

HPLC Calibration gradient method why used union ?

Hygro Chemicals,

2 6280

diffrence between known impurity and specified impurity?

Cipla, Medreich,

2 7066

Which of the following is prevented best with vaccination?

RRB,

2350

what are stereomers? how are they classified?

MSN, Reddy Labs,

3443

If mass balance is not passing in forced degradation in method validation that method is suitable or not?

Aurobindo, Dr Reddys, Reddy Labs, Wockhardt,

1 9026

Why we compare unequal concentrated solutions in heavy metals test. For example comparing the test solution with 1 ppm lead standard and telling it's less than 20ppm?

Micro Labs, Mistair,

1 7851

from hplc chromatogram how can we say that calibration is needed now?

Lupin, Teva Pharmaceuticals,

2557

Why Assay and CU test performed differently?

Cipla, Lupin,

4 16575

What is the reason for negative peak in HPLC while using UV detector.

2 15918


Un-Answered Questions { Sciences }

If calibration of 12 bowl dissolution apparatus does not meets single stage procedure, how can u proceed calibration?

3407


The mammals that lives at the greatest altitude is?

1051


How do you determine when a mole needs further evaluation for skin cancer?

892


Write the equation of photosynthesis?

1131


what is the mean of g= 9.8m/s2. waht is the mean of unit m/s2

1352


Give the classification of hypersensitivity?

429


What are the typical vegetation and the typical fauna of the tropical forests?

288


Explain qualitatively the phenomenon of quantum tunneling of an electron across a potential barrier? : quantum physics

983


find 665+22.9=

1176


Expand cell line HL-60.

573


Why is disodium salt of edta preferred to edta?

1550


Of the three types of meteorites, which is the most common, in terms of the number of samples, to fall to earth in recorded history?

100


What causes the earth's oblateness?

997


State and prove mean value theorem for the function f(x,y).

1177


Explain planck’s hypothesis? : quantum physics

1055