Question

What is the use of blue litmus paper in a laboratory?
When blue litmus paper is dipped in acids, it turns
red. If so, do our food substances have acidic
quality? Which food stuffs should we choose to test
this? List them.​

Answer 1

Answer:

Blue litmus paper is used for testing the acidic level of various substances. Even our foods have acids but they are organic. Like lime,orange have citric acids

Answer 2

Answer:

yes our food substance has acidic quality

Explanation:

red cabbage

turmeric

onion

lemons, etc.