Galvanised iron is (A) Harder (B) Protected from rusting (C) Alumina coated iron (D) None of these

Galvanised iron is
(A) Harder
(B) Protected from rusting
(C) Alumina coated iron
(D) None of these
by

1 Answer

Answer :

(B) Protected from rusting
by

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The rusting of iron

Description : The rusting of iron

Last Answer : Increases its weight

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Last Answer : Oxygen and Moisture

Rusting of Iron is –

Description : Rusting of Iron is –

Last Answer : Due to oxidation

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Description : What does the rusting of iron nail?

Last Answer : Increases its weight

What are the methods of preventing rusting of iron?

Description : What are the methods of preventing rusting of iron?

Last Answer : Iron articles can be coated with zinc or chromium. By painting the iron articles. By heating and dipping in molten coal tar.

Rusting of iron is quicker in saline water than in ordinary water. Why is it so ?

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Which of the following is not favourable to prevent iron from rusting?

Description : Which of the following is not favourable to prevent iron from rusting?

Last Answer : Annealing

The rusting of iron metal in air needs both

Description : The rusting of iron metal in air needs both

Last Answer : Oxygen and Moisture

Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below: (A) Both A and R is true and, R is the correct explanation of A (B) Both A and R is true but R is not the correct explanation of A (C) A is true but R is false (D) A is false but R is true

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Last Answer : Answer: Option A

Iron is prevented from rusting by coating with zinc. This process is called as (1) Galvanisation (2) Corrosion (3) Sublimation (4) Reduction

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Last Answer : Galvanisation

The rusting of iron is a/an (1) physical change (2) electrochemical change (3) electrical change (4) None of the above

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Last Answer : electrochemical change

Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygen d. Chemical reaction with CO2 (1) a and b (2) b and c (3) c and d (4) a and c

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The metal, used to galvanise iron to protect it from rusting is (1) Zinc (2) Chromium (3) Lead (4) Antimony

Description : The metal, used to galvanise iron to protect it from rusting is (1) Zinc (2) Chromium (3) Lead (4) Antimony

Last Answer : Zinc

Rusting of iron takes place due to (1) oxidation (2) carbonation (3) exfoliation (4) corrosion

Description : Rusting of iron takes place due to (1) oxidation (2) carbonation (3) exfoliation (4) corrosion 

Last Answer : oxidation

Catalyst used in catalytic reforming is (A) Platinum on alumina (B) Nickel (C) Iron (D) Aluminium chloride

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Last Answer : (A) Platinum on alumina

Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

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Last Answer : (B) Iron