Sciences Interview Questions
Questions Answers Views Company eMail

Will the Shadow of an AIR PLANE fall over EARTH landspace while it is flying in AIR..? Yes/No .. Give a suitable explanation.. What is the Physical principle behind that?

Infosys,

2 3859

A catalyst

Wipro,

5 6003

is photocell can be used as photodiode

1 3079

how can we calculate void volume?give its importance in brief

Natco,

1 8859

What is the function of end capped column?

Cipla,

5 32655

HOW TO CALCULATE THE MASS OF UNKNOWN IMPURITY IN LC-MS? AND WHAT IS THE ROLE OF FRAGMENTATION IN LC-MS ?

1 5577

how calculate column dead volume in hplc ?

Torrent Pharma,

3 21392

If benzene and tolune both can be mixed... what is the boiling point for the mixture and its density...?

2 4498

naphtha and hexane mixture can be used a fuel or not

Jubilant Organosys,

1974

THe atomic masses are generally not whole numbers. Why?

2 3948

Is it possible that a nucleus has negative mass defect?

4 20057

Why is heavy water used as a moderator?

2 4744

why sucrose is used for polarimeter calibration

Sun Pharma,

4 41000

why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

GVK, Torrent Pharma,

2 20931

why we use caffeine for hplc calibration?

Aurobindo,

5 26188


Un-Answered Questions { Sciences }

In the phase when the cell is not dividing (interphase) is there activity within the cell nucleus?

480


What is the mean of “no room to floss”?

457


DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.

1685


why is their exotherm while addition of reducing agents in reduction reaction?

1900


Why do not dry vanillin befour MR CALIBRATION

551






Why mosquito bites and it causes itching?

491


What is seborrhoeic dermatitis?

546


Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?

2600


How do you ensure effective communication and build rapport with patients from diverse cultural backgrounds, especially when discussing sensitive neurological issues?

1


What is a positron?

507


How do you ensure the quality and safety of care provided to patients undergoing dialysis or other nephrology treatments?

1


what is structure of flower of species of Inula genus ?

1341


why using HCLO4 in potentiometry?. what are the chacterestics of HCLO4.

3200


how you can fix the known and unknown impurity limit for any drug substance

2761


What are the environmental harms caused by mercury pollution? What are the main sources of mercury pollution?

61