Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET2018ChemistryElectrochemistry

During galvanization of iron, which metal is used for coating the iron surface?

Options

  1. ACopper
  2. BZinc
  3. CNickel
  4. DTin

Correct answer

B. Zinc

Step-by-step solution

Because zinc gets oxidized first when comes in contact with moisture and hence iron surface is protected from corrosion.

Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

Which of the following is always true about a spontaneous cell reaction in a galvanic cell? 2026The G ^o for the reaction, Cd ²⁺(aq) + Zn (s) Zn ²⁺(aq) + Cd (s) is: [E^o_ Cd ²⁺/ Cd = -0.403, E^o_ Zn ²⁺/ Zn = -0.763 V ] 2026Resistance of 0.2 M solution of an electrolyte is 50 . The conductivity of the solution is 1.3 Sm ⁻¹ . If the resistance of 0.4 M solution of the same electrolyte is 260 , its mola 2026Using the data given below, the strongest reducing agent is: E^o_ Cr ₂ O ₇²⁻/ Cr ³⁺ = 1.33 V E^o_ MnO ₄^-/ Mn ²⁺ = 1.51 V E^o_ Cl ₂/ Cl ^- = 1.36 V E^o_ Cr ³⁺/ Cr = -0.74 V 2026The quantity of Ca that can be produced from molten CaCl₂ , with the same quantity of electricity (in coulombs) required to produce 4.8 g of Mg from molten MgCl₂ is: [Atomic mass o 20263.482 10⁻¹ g of Fe gets deposited when an aqueous solution of Ferric sulphate is electrolysed for 20 minutes using a current of "x" amperes. Find "x". (Atomic mass of Fe = 56amu). 2026Consider a Galvanic cell in which the following reactions occurs: Fe ²⁺(aq) + Ag ^+(aq) Fe ³⁺(aq) + Ag (s) . What is the standard potential of the cell? Given: E^0_ ( Ag ^+/ Ag ) = 2026What will be the change in the electrode potential of chromium electrode dipping into chromic sulphate solution, when the electrolyte is diluted 10 times at 25^ C? [ E^0 ( Cr ³⁺/ C 2026 Full Electrochemistry list All MHT CET PYQs