Natural plant extracts contain [F] that show different colours in acids or alkalis. These plant extracts can be used as acid-alkali [G].

Different types of medicinal plants

On the pH scale, what colour indicates a strong alkali?RedPurpleYellowBlue

phytochemicals are the nutrients found in plants required by you as tissue building blocksGroup of answer choicesTrueFalse

Alkalis are bases that can neutralize acids to form salts and water.Alkalis are groups of chemicals with high pH. Alkalis can help soften potable water and remove impurities such as manganese, fluorides and organic tannins. According to the National Lime Association, heavy industries use alkali in the form of lime to absorb and neutralize sulphur oxides to aid in reducing acid rain.Lime is a manufactured product made from limestone (calcium carbonate) or dolomite (calcium magnesium carbonate). The raw material is processed into quicklime and hydrated lime. Since it is alkaline, it's often used to adjust the pH of water and soils containing acidic components. It's used to treat both drinking water and wastewater.There has been a lot of hype about the health benefits of drinking alkaline water, but those on the other side of the fence believe that that is all it is—hype. What makes alkaline water so special from the regular variety  Q 2.1A farmer adds lime to the soil before growing a crop. Outline the uses of calcium carbonate.

Plants are able to create their own amino acids. The plants require a specific mineral to be able to do this.Name this mineral, and state where it is taken from.