Related Questions

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its
A Lower cost
B Abundant availability
C Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry
D None of these
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
Corrosion involves exchange of electrons in __________ corrosion.
A Chemical
B Electrochemical
C Both A & B
D Neither A nor B
Ingrannular corrosion occurs __________ stainless steel.
A In all types of steels except
B At the surface of
C Along grain boundaries of
D In the core of
Fe(s) |Fe2+ (aq) || Br2 (l) ; Br- (aq)| Pt(s) তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
A Fe+Br2→Fe2++2Br-
B Fe+2Br-→Fe2++2Br2
C Fe2++Br2→Fe+2Br-
D Fe+Br2→Fe3++2Br-
Fes|Fe2+aq∥Br2I; Br-aq| pts তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
A Fe+Br2→Fe2++2Br
B Fe+2Br-→Fe2++Br2
C Fe2++Br2→Fe+2Br
D Fe+Br2→Fe3++2Br
The cathode in an electrochemical cell always carries
A negative charge
B positive charge
C zero charge
D positive or negative charge depending upon the nature of the cell
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :
A Power transmittor
B Battery
C Uninterrupted power supply (UPS)
D Generator
The deterioration of a metal by an electrochemical process is commonly termed as
A Erosion
B Corrosion
C Passivation
D Abrasion

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