Table of Contents
- 1 Why are food cans plated with tin and not zinc?
- 2 Why are food cans coated with tin and not with zinc or copper?
- 3 Why is tin preferred to zinc on a steel food can?
- 4 Why cans for storing food are coated with tin rather than zinc to protect them from rusting?
- 5 What are tin cans coated with?
- 6 Why is tin not used in cans?
Why are food cans plated with tin and not zinc?
This means that zinc is more reactive than tin. Due to this, food can be preserved in tin containers but if you keep food in a zinc container, then food will get spoiled. Thus, food cans are coated with tin and not with zinc because zinc is more reactive than tin. Hence, the option (C) is the correct option.
Why are food cans coated with tin and not with zinc or copper?
Food cans are coated with tin and NOT zinc because zinc is more reactive than tin. Zinc being more reactive, it reacts with the organic acids present in the food. Due to this it can get dissolved in the food substance and make the food poisonous. It is due to this reason that tin, a less reactive metal is used.
Why food cans are coated with tin and not with zinc Brainly?
‘Food cans’ are coated with ‘tin’ and not with zinc because zinc is a ‘more reactive compound’ as compared to tin. Explanation: Zinc can react naturally with acids and bases present on food. Since zinc is an amphoteric substance it can react with both acids and bases.
Why tin coating is used in food cans?
The main purpose of tin cans is to preserve food. The following are the reasons why mostly tin is used as the coating material: Ordinary metals would react to the acids that foods naturally produce and begin to corrode, releasing molecules that would not only destroy the can, but also contaminate the food.
Why is tin preferred to zinc on a steel food can?
Zinc is more reactive than iron, so it also acts as a sacrificial metal. The inside of a steel food can is electroplated with tin, a less reactive metal than iron. It provides a physical barrier to oxygen and water, stopping the can rusting.
Why cans for storing food are coated with tin rather than zinc to protect them from rusting?
Answer : Food cans are coated with tin and not zinc because zinc is more reactive than tin. We should not use zinc in food cans as they are more reactive and might react with food items present in containers and make them unhealthy and not good for eating.
Which of the following metal has highest melting point?
Of all metals in pure form, tungsten has the highest melting point (3422 °C, 6192 °F), lowest vapor pressure (at temperatures above 1650 °C, 3000 °F), and the highest tensile strength.
Why are steel cans coated with tin?
The steel is rolled into huge coils and has a fine coating of tin or chromium oxide to protect it from oxidation before it is sent to canmakers worldwide.
What are tin cans coated with?
The inside of the can is coated with an epoxy coating, in an attempt to prevent food or beverage from coming into contact with the metal. The longer food is in a can, and the warmer and more acidic it is, the more BPA leaches into it.
Why is tin not used in cans?
Tin is relatively rare, and modern cans are usually made of aluminum or other treated metals. It may be the least available of all common metals. This means that making anything out of pure tin — especially common objects —would be difficult and very expensive.
Why tin is better than zinc?
Zink is better than tin in protecting iron from corrosion because zink has more affinity to oxygen than tin. When is coated on iron layer then it reacts with oxygen if air to form a protective layer of zink oxide on iron which prevent the further reaction of iron with oxygen, and thus preventing the process of rusting.