Context: For most of the Soviet Union's existence, it was commonly referred to as "Russia," even though technically "Russia" was only one republic within the larger union—albeit by far the largest, most powerful and most highly developed.

Question: What was the common name of the Soviet Union?
Answer: Russia

Question: Technically, what type of state was Russia?
Answer: republic

Question: What was the largest republic in the Soviet Union?
Answer: Russia

Question: What was the uncommon name of the Soviet Union?
Answer: Unanswerable

Question: Technically, what type of state wasn't Russia?
Answer: Unanswerable

Question: What was the smallest republic in the Soviet Union?
Answer: Unanswerable

Question: Which republic was the least developed?
Answer: Unanswerable

Question: Which republic was the least powerful?
Answer: Unanswerable