Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

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?

Answer Posted / arti naik

The pink colour appears due to the change in the structure
of the phenolphthalein indicator and it forms a disodium
salt due to the base NaOH which then gives it a pink colour.

Is This Answer Correct ?    7 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

which batch require to use for analytical method validation?

859


process of Diclofenac sodium,IP.

2286


if rsd failed then what require to do?

880


What is the main difference between ODS1 and ODS2 Hplc column.

5306


in api coa contains only process impurities and in product coa contains degradation impurities?

733


how to calibrate hplc & gc

4559


WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2665


if content uniformity passing but dissolution varrying then what is next step?

936


how to set sample and standard concentration in RS method?

967


WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1250


Related substance method equivalency on control sample or spiked sample?

824


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?

2015


Colorimtry

1702


What is a difference between potency and purity?

1261


Why only 1.2 million lux hours require in photostability study?

1100