The properties of a good primary standard solution include the following except?
A
High molecular mass
B
low molecular mass
C
high degree of purity
D
readily available
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Properties of a good standard solution
High purity.
Stability (low reactivity)
Low hygroscopicity (to minimize weight changes due to humidity)
High equivalent weight (to minimize weighing errors)
Non-toxicity.
Ready and cheap availability.
High molecular mass
Source: WAEC / JAMB / NECO Classroom Archive (Record #58043)