Question : The substance most commonly used as a food preservative is
Option 1: sodium carbonate
Option 2: tartaric acid
Option 3: acetic acid
Option 4: sodium salt of benzoic acid
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Correct Answer: sodium salt of benzoic acid
Solution : The correct answer is sodium salt of benzoic acid.
A substance used to keep food in good condition is known as a preservative. Sodium salt of benzoic acid is a preservative used in food products. It provides an acidic pH of 2.5 to 4.0. With this low pH, it reduces the activity of microbes and prevents them from rotting and the activity of bacteria and fungi.
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Question : Vitamin C is also known as ____.
Option 1: Ascorbic acid
Option 2: Tartaric acid
Option 3: Maleic acid
Option 4: Acetic acid
Question : Which acid is predominantly present in tomatoes?
Option 1: Carbonic acid
Option 2: Acetic acid
Option 3: Oxalic acid
Option 4: Tartaric acid
Question : Which of the following acids makes the pH of vinegar acidic?
Option 1: Tartaric acid
Option 2: Citric acid
Option 3: Linoleic acid
Question : Vinegar used in cooking contains which of the following compounds?
Option 1: Methanol
Option 2: Sodium sulphate
Option 3: Ammonia
Question : Limestone, chalk and marble are different forms of ____________.
Option 1: calcium carbonate
Option 2: sodium carbonate
Option 3: potassium carbonate
Option 4: magnesium carbonate
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