substance:tomato
red litmus turns blue or not
blue litmus turns red or not
no change in litmus
Answers
Explanation:
Litmus paper is made from wood cellulose that is infused with an aqueous solution consisting primarily of lichens. During the production of red litmus paper, the lichens are left to ferment in potassium carbonate, ammonia, and a small amount of sulfuric or hydrochloric acid. The mass is then mixed with chalk. It is this solution that makes the paper pH active. White paper is impregnated with the solution and left to dry in open air. The process for blue litmus paper is similar, but no sulfuric or hydrochloric acid is added to the solution.
The pH scale ranges from zero to 14, with a pH of 7 being neutral, a pH less than 7 being acidic, and a pH greater than 7 being alkaline. Ammonia gas turns red litmus paper blue because it has a pH of 11.6. Milk of magnesia is slightly less alkaline, with a pH level of around 10.5. Sodium bicarbonate, otherwise known as baking soda, has a lower pH level still, at around 8.4, but it is still alkaline because it is above the neutral pH value of 7. Other examples of substances that turn red litmus paper blue include sodium hydroxide (caustic soda), calcium hydroxide (limewater) and alkaline soils.
Answer:
hey mate..... Tomato Will change blue litmus to red because it contains oxalic acid ...... it's not a strong acid but weak as edibles....
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