i need help lowering soil ph!

CAN I USE Liquid Lightning Buffered Sulfuric Acid Drain Cleaner TO LOWER MY SOIL PH? my soil ph is between 7.3-8 and im having deficiencies!

I really wouldn't. Elemental sulfer is what most gardeners will use to lower ph. Blueberry growers use it steadily, those plants like their ph around 4.5.

apple cider vinegar will lower the pH, but I would not use it for long term...go buy some pH down