two substances,a and b have same melting point.How can you determine if they are the same without using any form of spectroscopy? Explain in detail.

Answer 1

If they are the same compound then the melting point of a mixture will be the same as a and b. If a and b are different compounds then a mixture of the two will have a different (lower) melting point than a and b.

Answer 2

what is the structure of phenylhexane?

Answer 3

It is not a good idea to piggy back questions because it looks as though the original question has been answered, so one looks at the next.

I have answered the hexyl benzene question above.