Question

In this laboratory, two methods are used to determine the identity of unknown cations,
the qualitative scheme and flame test. What is the primary advantage of the qualitative
scheme compared to the flame test?
O The qualitative scheme is less complicated to implement
The qualitative scheme is faster to perform
The qualitative scheme is more sensitive
O The qualitative scheme is able to distinguish mixtures of unknowns

Answer 1

The qualitative method of analysis of cations depends on chemical reactions. It has the advantage of being able to distinguish mixtures of unknowns.

The flame test you can only detect a single cation with precision. If there is a mixture of cations, you can only detect the cation that burns with the brightest flame in the mixture. This makes the flame test limited in its applications.

However, the qualitative scheme is useful in distinguishing a mixture of unknown cations because each cation undergoes a remarkable chemical reaction with certain reagents.

Learn more: https://brainly.com/question/6955504