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A student made the following observation...

A student made the following observations in the laboratory
(i) Clean copper metal did not react with 1 molar Pb `(NO_3)_2` solution.
(ii) Clean lead metal dissolved in a 1 molar `AgNO_3` solution and crystals of Ag metal appeared. The order of decrease in reducing character of three metals is

A

Cu, Pb, Ag

B

Cu, Ag, Pb

C

Pb, Cu, Ag

D

Pb, Ag, Cu

Text Solution

Verified by Experts

The correct Answer is:
C
Metal placed above in electrochemical series replaces the other from its solutions which is lower in the scries.
The low `E^@` value containing metals have the high reducing character
`therefore` Order of reducing character of three metals is Pb > Cu > Ag.
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MTG GUIDE-ELECTROCHEMISTRY-NEET Café (Topicwise Practice Questions) (CELLS AND ELECTRODE POTENTIAL)
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  2. A gas z is bubbled through a solution containing x^- and y^- . If the ...

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  3. A student made the following observations in the laboratory (i) Clea...

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  4. Indicator electrode is

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  5. In an electrochemical cell, the electrons flow from

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  6. Saturated solution of KNO3 , is used to make 'salt bridge because

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  7. Electrode potentials (E(red)^@) of 4 elements A, B, C and D are -1.36,...

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  8. Which one of the following does not hold good for S.H.E?

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  9. For the electrochemical cell having E^@(M^+//M) =0.44 V and E^@(X//X...

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  10. The reference calomel electrode is made from which of the following?

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  11. Out of Cu, Ag, Fe and Zn, the metal which can displace all others from...

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  12. If half-cell reaction A+e^(-)toA^- has a large negative reduction pote...

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  13. Which of the substances Na, Hg, S, Pt and graphite can be used as elec...

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  14. In a Galvanic cell

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  15. Electrode potential data for a few elements is given Fe((aq))^(3+)+e...

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  16. The standard reduction potentials of 4 clements are given below. Which...

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  17. Fluorine is the best oxidising agent because it has

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  18. Zine gives H2 with H2SO4 and HCl but not with HNO3 because

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  19. The cell reaction of the galvanic cell: Cu((s))|Cu((aq))^(2+)||Hg((a...

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  20. Determine the standard reduction potential for the half cell reaction,...

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