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Electrode potentials (E(red)^@) of 4 ele...

Electrode potentials `(E_(red)^@)` of 4 elements A, B, C and D are -1.36,-0.32, 0,-1.26 V respectively. The decreasing reactivity order of these elements is

A

A, D.B and C

B

C, B, D and A

C

B, D, C and A

D

C, A, D and B

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The correct Answer is:
A
Lower is the reduction potential, more easily a metal is oxidised and more is its reactivity.
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MTG GUIDE-ELECTROCHEMISTRY-NEET Café (Topicwise Practice Questions) (CELLS AND ELECTRODE POTENTIAL)
  1. In an electrochemical cell, the electrons flow from

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

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

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

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

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

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

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

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

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  10. In a Galvanic cell

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

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

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  13. Fluorine is the best oxidising agent because it has

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

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

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

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  17. Which reaction is not feasible?

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  18. The standard reduction potential values of the three metallic cations ...

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  19. Stronger the oxidising agent, greater is the

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  20. The reaction that takes place at anode is

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