Q59) Consider the following statements about rust.

i) It requires presence at least one of either oxygen or water.

ii) Galvanization is a process of prevention of rusting.

iii) It is essentially an oxide of iron.

Which of the above statements are true?

a) ii only

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b) ii and iii only

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c) i and iii only

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d) i, ii and iii

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Solution

The correct option is B
b) ii and iii only

B)
Explanation: Rusting happens in the presence of both oxygen and water. Unless both components are present, the reaction will not lead to rusting.

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Similar questions

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. Galvanizing is a process of coating iron with a metal to prevent it from rusting. The metal is :

Q. Statement I : Rusting of iron can be prevented by forming a layer of substance on it.
Statement II. The layer prevents he metal from interacting with the atmosphere.

Q. Consider the following statements:
(a) Rusting is exothermic process.
(b) Dissolution of ammonium chloride in water is exothermic process.
(c) Addition of chlorine is also oxidation process.
(d) The formula of calcium phosphate is

{C a}_{3} {(P O_{4})}_{2}

.
Which of the above statements are correct ?

Question 5

A man painted his main gate made up of iron, to

(i) prevent it from rusting.
(ii) protect it from the sun.
(iii) make it look beautiful.
(iv) make it dust free.

Which of the above statement(s) is/are correct?
(a) (i) and (ii)
(b) (ii) and (iii)
(c) only (ii)
(d) (i) and (iii)

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Q59) Consider the following statements about rust. i) It requires presence at least one of either oxygen or water. ii) Galvanization is a process of prevention of rusting. iii) It is essentially an oxide of iron. Which of the above statements are true?

The correct option is B b) ii and iii only B) Explanation: Rusting happens in the presence of both oxygen and water. Unless both components are present, the reaction will not lead to rusting.

Q59) Consider the following statements about rust.

i) It requires presence at least one of either oxygen or water.

ii) Galvanization is a process of prevention of rusting.

iii) It is essentially an oxide of iron.

Which of the above statements are true?

The correct option is B
b) ii and iii only

B)
Explanation: Rusting happens in the presence of both oxygen and water. Unless both components are present, the reaction will not lead to rusting.