Chemistry
Which of the following is a slow change?
- Rusting of iron
- Burning of wood
- Burning of a cracker
- Switching on a fan
Phy & Chem Changes
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Answer
Rusting of iron
Reason — The changes that take longer time to complete are called slow changes. They take hours, days, months or even years to occur. Examples : Rusting of iron.
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Related Questions
Which of the following is a non-periodic change?
- Change of day and night
- Change of seasons
- Landslides
- Full moon and new moon nights
Burning of a piece of paper into ash is a:
- periodic change
- natural change
- reversible change
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Which of the following is a physical change?
- Cooking of food
- Formation of curd
- A glass cut into pieces
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In a chemical change :
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- energy is either released or absorbed
- the change is irreversible
- all of the above