jatinrai
What is the correct idiom? Distinguish X from Y or Distinguish between X & Y.
Both are correct.
"distinguish X from Y" generally used for comparing same types/things ( drugs to drugs, paints to paints, )
Distinguish addictive drugs from non-addictive drugs
Distinguish old paints from new paints
Distinguish between X and Y ( X and Y are from different types)
Distinguish between Cat and Dog (Distinguish Cat from Dog == sounds akward isn't it?)
Distinghish between solids and liquids.