Question

Q-A sample of soil is mixed with water and allowed to settle. The clear
supernatant solution turns the pH paper yellowish-orange. Which of the
following would change the colour of this pH paper to greenish-blue?
O Sodium Chloride
O Tomato
O Milk of Magnesia
O Vinegar​

Answer 1

Answer:

milk of magnesia

Explanation:

milk of magnesia change the colour of this ph paper to greenish-blue . but not sure about the answers