A zinc diffusion process is called

A Galvanizing
B Anodizing
C Parkerising
D Sherardizing

Correct Answer: Sherardizing

Sherardizing is the formation of a corrosion-resistant, zinc-iron alloy coating, on the surface of steel or iron.
The method involves the heating of the object in an airtight container that has zinc powder.
A thermal diffusion process occurs and the zinc diffuses into the object’s metal surface, forming the zinc-iron alloy.
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Related Questions

Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as
A Sheradising
B Parkerising
C Anodising
D None of these
If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 13 : 42
B 19 : 43
C 15 : 42
D 17 : 43
In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following :
A Jet of water at high pressure
B Blast of air
C Mixture of water and air
D Rain of molten lead
Ordinary diffusion process is also called __________ diffusion.
A Pressure
B Thermal
C Concentration
D Forced
If 2 kg of metal, of which 1/3 is zine and the rest is copper , be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A 17 : 43
B 13 : 42
C 19 : 43
D 15 : 42
Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is
A Reduced preferentially
B Cheaper
C Oxidised preferentially
D Lighter
Simple diffusion and facilitated diffusion share the following characteristics
A Do not require ATP
B Saturation kinetics
C Transport solute along concentration gradient
D Can be blocked by specific inhibitors
E Require transport protein
Iron is prevented from rusting by coating with zinc. This process is called as
A Galvanisation
B Corrosion
C Sublimation
D Reduction
The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called :
A Zinc plating
B Alloy formation
C Vulcanization
D Galvanization
The process of coating steel sheets by zinc to improve its corrosion resistance is called
A Calorising
B Galvanising
C Zincification
D Tempering

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