Recent questions tagged electrochemistry

Out of Cu, Ag,Fe and Zn the metal which can displace all others from their salt solution is

asked Sep 21, 2015 by meena.p

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$H^{+}$ ions are reduced at platinum electrode prior to :

asked Sep 21, 2015 by meena.p

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Which of the following can be used as an electrode ?

asked Sep 21, 2015 by meena.p

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Which of the following does not occur at cathode ?

asked Sep 21, 2015 by meena.p

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During the electrolysis of fused Nacl, which reaction occurs at anode

asked Sep 18, 2015 by meena.p

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The half - cell reaction is the one that

asked Sep 18, 2015 by meena.p

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The emf of the cell $Zn |Zn^{2+} (1.0 \;M) ||cd^{2+}(1.0\;M) |cd$ is

asked Sep 18, 2015 by meena.p

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The potential of a hydrogen electrode at PH 10 is

asked Sep 18, 2015 by meena.p

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Which of the following gains electrons more easily ?

asked Sep 18, 2015 by meena.p

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In the cell $Zn|Zn^{2+} ||Cu^{2+}|Cu$, the negative electrode is :

asked Sep 18, 2015 by meena.p

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Which metal will be deposited in the galvanic cell$Cu|Cu^{2+}||Ag^+| Ag$

asked Sep 18, 2015 by meena.p

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More electro negative elements have :

asked Sep 18, 2015 by meena.p

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In a galvanic cell energy changes occur like

asked Sep 18, 2015 by meena.p

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K,Ca and Li metals may be arranged in the decreasing order of their standard electrode potentials are

asked Sep 18, 2015 by meena.p

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The reference electrode is made from which of the following ?

asked Sep 18, 2015 by meena.p

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The oxide which can be reduced by hydrogen is :

asked Sep 18, 2015 by meena.p

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A depolarizer used in dry cell is

asked Sep 18, 2015 by meena.p

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Which of the following methods does not liberate hydrogen ?

asked Sep 18, 2015 by meena.p

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Galvanization of iron denotes and counting with

asked Sep 18, 2015 by meena.p

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When iron is rusted , it is :

asked Sep 18, 2015 by meena.p

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The potential of a hydrogen electrode at $PH =1$ is

asked Sep 18, 2015 by meena.p

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Which one will liberate $Br_2$ from $KBr$?

asked Sep 18, 2015 by meena.p

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Which of the following metals is most readily corroded in moist air ?

asked Sep 18, 2015 by meena.p

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The most reactive agent is

asked Sep 18, 2015 by meena.p

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Strongest reducing agent is

asked Sep 18, 2015 by meena.p

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The measured potential for :

asked Sep 18, 2015 by meena.p

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Which reaction will take place at cathode when fused calcium chloride is electrolysed ?

asked Sep 18, 2015 by meena.p

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Which of the following metals does not give the following reaction ? M+water $\to$ oxide or hydroxide +$H_2$

asked Sep 18, 2015 by meena.p

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The metal oxide which decomposes on heating is :

asked Sep 18, 2015 by meena.p

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Strongest reducing agent is :

asked Sep 18, 2015 by meena.p

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The cathodic reaction in electrolysis of dilute $H_2SO_4$ with platinum electrode is :

asked Sep 18, 2015 by meena.p

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When lead accumulator is charged , it is

asked Sep 18, 2015 by meena.p

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All cell do not contain

asked Sep 18, 2015 by meena.p

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In electrolysis oxidation takes place at :

asked Sep 18, 2015 by meena.p

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When one Faraday of electric current is passed , the mass deposited is equal to :

asked Sep 18, 2015 by meena.p

4 answers

In the specific resistance of a solution of concentration $C_q$ equivalent $liter ^{-1} $is $R$ , then its equivalent conductance is

asked Sep 18, 2015 by meena.p

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The amount of electricity that can deposit $108\;g$ of silver from silver nitrate solution is

asked Sep 18, 2015 by meena.p

2 answers

In electroplating the article to be electroplated serves as:

asked Sep 18, 2015 by meena.p

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On increasing the dilution , the soecific conductance :

asked Sep 18, 2015 by meena.p

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When Nacl is dissolved in water , the sodium ion is

asked Sep 18, 2015 by meena.p

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Molten sodium chloride conbucte electricity due to the presence of

asked Sep 18, 2015 by meena.p

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Strong electrolytes are those which

asked Sep 18, 2015 by meena.p

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One faraday of electricity will liberate one gram mole of the metal from the solution of

asked Sep 18, 2015 by meena.p

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Faraday's laces of electrolysis are related to :

asked Sep 18, 2015 by meena.p

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Which one is the correct equation that represents the first law of electrolysis ?

asked Sep 16, 2015 by meena.p

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One faraday is equal to

asked Sep 16, 2015 by meena.p

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Which of the following condition is correct for operation of electrolytic cell ?

asked Sep 16, 2015 by meena.p

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The process in which chemical change occurs on passing electricity is termed

asked Sep 16, 2015 by meena.p

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Substance which give good conducting aqueous solution are called

asked Sep 16, 2015 by meena.p

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Degree of ionization does not depend on

asked Sep 16, 2015 by meena.p

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