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If a cell reaction is spontaneous, then ...

If a cell reaction is spontaneous, then :

A

`E^(@)` negative

B

`E^(@)` is positive

C

`DeltaG` is negative

D

`DeltaG` is positive

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AAKASH INSTITUTE ENGLISH-ELECTROCHEMISTRY -Assignment (SECTION A) Objective Type Questions (One option is correct)
  1. The conductance of a solution of an electrolyte is equal to that of it...

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  2. The potential of hydrogen electrode having a pH=10 is

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  3. If a cell reaction is spontaneous, then :

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  4. For a general electrochemical reaction of the type alphaA+bB overset...

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  5. Which of the following releations is correct ?

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  6. Which of the following represents the electrodes of the first kind ?

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  7. Given that E(cu^(+2)//cu)^(@)=+0.34 V E(Mg^(+2)//Mg)^(@)=-2.37V whic...

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  8. Which of the following expression is correct?

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  9. Ast equilibrium

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  10. Zn can displace :-

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  11. Gas electrodes utilize the phenomenon of adsorption of gas molecules b...

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  12. Calculate the emf of the following cell at 25^(@)C Ag(s)|AgNO(3) (0.0...

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  13. The value of the reaction quotient Q for the cell Zn(s)|Zn^(2+)(0.01M)...

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  14. Which of the following is the most powerful reducing agent ?

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  15. For 2/3Al(2)O(3)rarr 4/3Al+O(2)DeltaG=-966 KJ at 500^(@)C The potent...

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  16. 240 coulombs of electricity is passed through a soluton of dilute supl...

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  17. The electrochemical equivalent of zinc (atomic mass = 65.4) is

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  18. During the electrolysis of aqueous nitric acid solution using Pt elect...

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  19. How much time will be required for a current of 0.2 amp to deposit all...

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  20. How many faradays are required to reduce one mole of Cr(2)O(7)^(-2)to ...

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