Question

When we use bis & tris ?

Answer 1

Answer:

Bis and Tris both are used prefix in the naming of organic compound and co-ordinate compound.

generally both names are used in traditional method of naming but in recent years IUPAC accept this names.

Answer 2

Explanation:

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You use bi and tri when the compound already has a di/tri type naming in it. For example, ethylenediamine already has di because it is referring to its two amine compounds; in this case, you would use bis if you had two of these. It would be called bisethylenediamine.