Why should you NEVER taste or touch an unknown base?

Answer 1

You should never touch or taste an unknown base because it may be corrosive and can burn or corrode your skin. Another reason is that it may be toxic or poisonous and you may die or need medical attention instantly.

Answer 2

Unknown bases can be caustic or corrosive substances that can cause chemical burns or irritation to the skin and mucous membranes. Additionally, some bases may be toxic and harmful if ingested or absorbed through the skin. It's important to always handle chemicals with caution and use appropriate safety measures to prevent potential harm.