Salts in Agriculture and Food Preservation
Chemistry ⇒ Acids, Bases, and Salts
Salts in Agriculture and Food Preservation starts at 10 and continues till grade 12.
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A farmer notices that his crops are wilting despite regular watering. Soil tests show high concentrations of sodium chloride. Explain how this could affect plant growth.
A food manufacturer wants to preserve pickles for a longer period. Which salt should be added to the brine to inhibit microbial growth and why?
Describe the difference between table salt and rock salt in terms of their use in food preservation.
Describe the role of calcium sulfate (gypsum) in agriculture.
A farmer notices that his crops are wilting despite regular watering. Soil tests show high concentrations of sodium chloride. Explain how this could affect plant growth.
A food manufacturer wants to preserve pickles for a longer period. Which salt should be added to the brine to inhibit microbial growth and why?
A batch of preserved fish is found to spoil faster than expected. Laboratory analysis shows a lower than recommended concentration of sodium nitrite. Explain the chemical reason for the reduced shelf life.
A farmer applies ammonium sulfate to his field. After several seasons, he notices a decline in soil pH. Explain the chemical process responsible for this observation.
Which of the following is a potential negative effect of using too much salt in food preservation?
(1) Enhanced flavor
(2) Increased shelf life
(3) Health risks such as hypertension
(4) Improved texture
Which of the following is a risk of using excessive sodium-based salts in agriculture?
(1) Improved soil fertility
(2) Soil salinization
(3) Increased crop yield
(4) Enhanced water retention
Which of the following is NOT a function of salts in food preservation?
(1) Inhibiting microbial growth
(2) Enhancing flavor
(3) Increasing water content
(4) Preventing spoilage
Which of the following salts is commonly used as a fertilizer in agriculture?
(1) Sodium chloride
(2) Ammonium nitrate
(3) Calcium carbonate
(4) Potassium permanganate
Fill in the blank: The chemical formula of potassium nitrate, a salt used in fertilizers, is __________.
Fill in the blank: The main nutrient supplied by ammonium phosphate fertilizer is __________.
Fill in the blank: The process of adding salts to soil to improve its fertility is called __________.
Fill in the blank: The process of removing excess salts from soil is called __________.
True or False: Ammonium sulfate is used as a fertilizer to provide nitrogen to plants.
True or False: Epsom salt is another name for magnesium sulfate, which is used in agriculture.
True or False: Potassium chloride is used to supply potassium to crops in agriculture.
True or False: The use of salt in cheese making helps control the growth of bacteria and fungi.
