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Metals Reaction with Oxygen (Burnt in Air)

Rusting of ir...

Question

Rusting of iron takes place in the presence of _ and moisture to produce iron __.

A

oxygen, oxide

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B

oxygen, hydroxide

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C

hydrogen, oxide

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D

hydrogen, hydroxide

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Solution

The correct option is A oxygen, oxide
Iron undergoes rusting in the presence of oxygen and moisture to produce a reddish-brown flaky substance, iron oxide.

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Q. Iron rusts in presence of air and moisture.

_________ is defined as a process where materials, usually metals, deteriorate as a result of a chemical reaction with air, moisture, chemical, etc. For example, iron, in the presence of moisture, reacts with oxygen to form hydrated iron oxide.

When substances made of iron are exposed to oxygen and moisture over a period of time, ___ takes place.

Q. Assertion :Rusting of iron is considered an oxidation reaction. Reason: Rust is another name for iron oxide which occurs when iron is exposed to oxygen and moisture for a long period of time. Overtime the oxygen combines with the metal at atomic level forming a compound called an oxide. Rust forms when iron undergoes oxidation. The main catalyst for the rusting process is water.

Q. Consider the following statements.

A - Iron + Moisture + Oxygen = Iron Oxide.

B - The rust that develops in rocks with iron content cannot be removed, thereby, keeping the original structure of the rock intact.

Identify the correct statements.

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Metals Reaction with Oxygen (Burnt in Air)

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