Iron articles are shiny when new, but get coated with a reddish brown layer when left in open for a long time.

True

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False

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Solution

The correct option is A True
Iron articles are shiny when new, but when left in open, iron reacts with air and moisture. As a result, a flaky brown layer (of iron oxide) forms on its surface. This process is called the rusting of iron. The reddish-brown layer is known as rust.

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Similar questions

Iron articles are shiny when new, but get coated with a reddish-brown powder when left for some time.

Question 8.

Why do the articles made of iron when placed in moist air get covered with reddish-brown, powdery substance? Is this process a physical or chemical change?

Q. Iron when reacts with moist air forms a reddish brown layer of iron oxide which is known as rust.

Q. Iron when exposed to moist air forms a reddish brown layer of iron oxide, which is known as rust.

Q. The formation of brown coloured flaky layer (rust) on iron nail when kept in air for a long time is a _________.

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Iron articles are shiny when new, but get coated with a reddish brown layer when left in open for a long time.

The correct option is A TrueIron articles are shiny when new, but when left in open, iron reacts with air and moisture. As a result, a flaky brown layer (of iron oxide) forms on its surface. This process is called the rusting of iron. The reddish-brown layer is known as rust.

The correct option is A True
Iron articles are shiny when new, but when left in open, iron reacts with air and moisture. As a result, a flaky brown layer (of iron oxide) forms on its surface. This process is called the rusting of iron. The reddish-brown layer is known as rust.