What must be the value of selectivity factor?
A. Equal to 1
B. Less than 1
C. Greater than 1
D. Greater than 0
Answer:C
What must be the value of selectivity factor?
A. Equal to 1 B. Less than 1 C. Greater than 1 D. Greater than 0
Explanation: Selectivity factor/ Relative retention must always be greater than 1. It is also known as Relative migration rate.