What is chemical formula of rust?

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Corrosion is a natural process in which metal materials deteriorate and break down due to chemical reactions with their environment, typically air, water, and soil.

This results in the formation of rust on iron and steel and other metal alloys.
The process of corrosion can cause metal structures to weaken, leading to metal fatigue and structural failure.
Corrosion can be prevented through the use of protective coatings, cathodic protection, and inhibitors.

Rusting

Rusting is a chemical reaction that occurs when metal reacts with moisture and oxygen in the air, forming iron oxide.

This corrosion process weakens and damages the metal, and can cause it to deteriorate over time.
The process of rusting is accelerated by salt, chemicals, and high humidity.
The chemical formula of rust is Fe₂O₃·nH₂O, where n is the number of water molecules in the hydrated form of rust.
Rust is an oxide of iron formed due to the reaction of iron with atmospheric oxygen and water.
The hydrated form of rust is known as hydrated iron(III) oxide, which is a soft and porous material.
Over time, rust can cause corrosion and weaken the iron structure, which is why it is considered a major problem in many industries.
Iron forms rust on its surface when it comes in contact with oxygen in presence of Water, a reddish-brown coating.

The chemical reaction can be represented as:

4Fe (s) + 2xH₂O (aq) + 3O₂ (g) → 2 Fe₂O3.xH₂O (rust)

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CBSE CLASS XII Related Questions

1.
(i) A first order reaction is 20% complete in 10 minutes. Calculate the time taken when 80% of the reaction will be completed.
[Given : log 5 = 0.7, log 4 = 0.6]
(ii) For a chemical reaction \( \mathrm{R \rightarrow P} \), variation in \( \ln[\mathrm{R}] \) vs. time (t) graph is given below :
(I) Predict the order of the reaction.
(II) Write the slope of the curve.

View Solution

2.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

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3.
(a) Write two structural differences between DNA and RNA.
(b) Which component of starch is a branched chain polymer of \( \alpha \)-D-(+)-glucose ? Write its one characteristic feature.
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4.
Draw the structures of major monohalo products in each of the following :
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5.
(i) Give a chemical test to distinguish between Propanal and Propanone.
(ii) Which of the given acids is stronger and why ? \( \mathrm{F_3C{-}C_6H_4{-}COOH} \) or \( \mathrm{H_3C{-}C_6H_4{-}COOH} \)
(iii) Complete the given reaction sequence :
\[ \mathrm{CH_3CH_2CH_2COOC_2H_5} \xrightarrow{\mathrm{NaOH}} \mathrm{A + C_2H_5OH} \]
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6.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
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(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
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View Solution

What is chemical formula of rust?

Rusting

CBSE CLASS XII Related Questions

2.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

3.
(a) Write two structural differences between DNA and RNA.
(b) Which component of starch is a branched chain polymer of \( \alpha \)-D-(+)-glucose ? Write its one characteristic feature.
(c) Which types of bonds hold the polypeptide chains in fibrous proteins ?

4.
Draw the structures of major monohalo products in each of the following :
(a)
(b)

6.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.

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What is chemical formula of rust?

Rusting

CBSE CLASS XII Related Questions

2.Following reaction takes place in one step:\(2A + B \rightarrow 2C\)How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

3.(a) Write two structural differences between DNA and RNA.(b) Which component of starch is a branched chain polymer of \( \alpha \)-D-(+)-glucose ? Write its one characteristic feature.(c) Which types of bonds hold the polypeptide chains in fibrous proteins ?

4.Draw the structures of major monohalo products in each of the following :(a)(b)

6.An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it: (I) does not give Tollen's test but gives a positive iodoform test. (II) does not give Tollen's test and iodoform test but undergoes Aldol condensation. (III) undergoes Cannizzaro's reaction.

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
Following reaction takes place in one step:

\(2A + B \rightarrow 2C\)

How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?

3.
(a) Write two structural differences between DNA and RNA.
(b) Which component of starch is a branched chain polymer of \( \alpha \)-D-(+)-glucose ? Write its one characteristic feature.
(c) Which types of bonds hold the polypeptide chains in fibrous proteins ?

4.
Draw the structures of major monohalo products in each of the following :
(a)
(b)

6.
An organic compound (X) has the molecular formula \(C_5H_{10}O\). Draw structures for (X) if it:
(I) does not give Tollen's test but gives a positive iodoform test.
(II) does not give Tollen's test and iodoform test but undergoes Aldol condensation.
(III) undergoes Cannizzaro's reaction.