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ChemistryEasyMCQ2016 ยท 03 Apr

Q45.Galvanization is applying a coating of: (1) Cu (2) Zn (3) Pb (4) Cr

What This Question Tests

This question is a direct recall of the definition and principle of galvanization as a method of corrosion prevention.

Concepts Tested

CorrosionGalvanizationSacrificial protection

๐Ÿ“š NCERT Sections This Tests

2.1 โ€” Arrange The Following Metals In The Order In Which They Displace Each Other

Chemistry Class 11 ยท Chapter 2

75% match

2.1 Arrange the following metals in the order in which they displace each other from the solution of their salts. Al, Cu, Fe, Mg and Zn.

2.2 โ€” Given The Standard Electrode Potentials,

Chemistry Class 11 ยท Chapter 2

73% match

2.2 Given the standard electrode potentials, K+/K = โ€“2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = โ€“2.37 V, Cr3+/Cr = โ€“ 0.74V Arrange these metals in their increasing order of reducing power.

2.3 โ€” Depict The Galvanic Cell In Which The Reaction

Chemistry Class 11 ยท Chapter 2

73% match

2.3 Depict the galvanic cell in which the reaction Zn(s)+2Ag+(aq) ยฎZn2+(aq)+2Ag(s) takes place. Further show: (i) Which of the electrode is negatively charged? (ii) The carriers of the current in the cell. (iii) Individual reaction at each electrode.