Related Questions

100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?
A 70 kg
B 36 kg
C 44 kg
D 56 kg
Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower
A Price
B Corrosion resistance
C Thermal conductivity
D Abundant availability
Food cans are coated with tin and not with zinc because
A Zinc is costlier than tin
B Zinc has a higher melting point than tin
C Zinc is more reactive than tin
D Zinc is less reactive than tin
Electrochemical corrosion occurs
A Where the liquid electrolytes containing free ions are present
B Only in alloys
C Only in pure metals
D Due to direct chemical action of metal with oxygen
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
e-TIN 46-(e-TIN was introduced in -)
A 2020
B 2003
C 1992
D 2013
Among the tin containing alloys, __________ consumes the maximum amount of tin.
A Solder
B White metal
C Pewter matal
D Bronzes
If you need 98 ounces of iron and 2 ounces of carbon to make a sheet of steel. How much iron you need in ounces to make 12 sheet steel?
A 98
B 50
C 49
D 198
Electrochemical corrosion can occur, only if __________ is present in contact with metal.
A Air
B Oxygen
C Liquid medium
D Gaseous medium
Which of the following does not come under the category of electrochemical corrosion?
A Corrosion in organic liquids
B Atmospheric corrosion in moist gas or air
C Soil corrosion as in the case of underground pipes
D Corrosion in sea water and molten metals

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