Chemistry: Corrosion Process

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What happens when milk is left at room temperature during summers?

It turns into cheese

It evaporates

It gets fermented (correct)

It freezes

What happens when an iron tawa/pan/nail is left exposed to humid atmosphere?

It becomes magnetic

It gets polished

It undergoes corrosion (correct)

It turns into gold

What happens when food is cooked?

Its chemical composition changes (correct)

It gets fermented

It gets digested in the body

It becomes toxic

What is observed when a magnesium ribbon is burned as described in Activity 1.1?

A white ash is formed Signup and view all the answers

What happens when grapes get fermented?

They produce alcohol Signup and view all the answers

How does exposure to humid atmosphere affect iron objects?

They undergo corrosion Signup and view all the answers

What is the shiny brown element that turns black on heating in air?

Iron Signup and view all the answers

Why do we apply paint on iron articles?

To prevent corrosion Signup and view all the answers

Which of the following food items are flushed with nitrogen to prevent rancidity?

Butter Signup and view all the answers

What is the process responsible for the rusting of iron?

Corrosion Signup and view all the answers

Which term refers to the degradation of metals due to chemical reactions with the environment?

Corrosion Signup and view all the answers

In everyday life, which of the following is an example of an oxidation reaction?

Iron rusting Signup and view all the answers

What is the common term used for the process of iron articles getting coated with a reddish brown powder over time?

Rusting Signup and view all the answers

Which of the following is a common example of corrosion mentioned in the text?

Green coating on copper Signup and view all the answers

What effect does oxidation have on fats and oils, causing them to become rancid?

Decreases their shelf life Signup and view all the answers

Which substance is typically added to foods containing fats and oils to prevent oxidation?

Antioxidants Signup and view all the answers

How do chips manufacturers prevent chips from getting oxidized?

Flushing bags of chips with nitrogen gas Signup and view all the answers

What is the primary reason for replacing damaged iron objects according to the text?

To ensure structural integrity Signup and view all the answers