Question

Can UV/VIS spectrophotometry be used to absolutely determine the identity of a
substance? Explain

Answer 1

UV / VIS spectrophotometry alone cannot be used to determine the identity of a substance

But it can be used to analyse and tell that given two samples are unique and separate from each other

In special cases when we have a standard for the sample then we can study both their absorbance pattern and tell wheather the sample is same as standard or not

But UV/VIS spectrophotometry in itself cannot tell about the identify of that substance

I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.