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Definition of electrode potential is?
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NUST Entry Test
Chemistry
Electrochemistry
Which one has valency other than one?
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Chemistry
Electrochemistry
Two half cells of a galvanic cell are connected with a salt bridge, the electrons flow from?
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Chemistry
Electrochemistry
What is the oxidation state of $\rm{Mn}$ in $\rm{K_{2}MnO_{4}}$?
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Chemistry
Electrochemistry
Oxidation state of sulphur in $\rm{H_{2}SO_{4}} $?
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Chemistry
Electrochemistry
Oxidation number of Cr in $\rm{K_{2}Cr_{2}O_{7}}$ and $\rm{K_{2}Cr_{2}O_{4}}$ is
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Chemistry
Electrochemistry
Zn can be deposited on iron by ?
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Chemistry
Electrochemistry
Standard reduction potential of $\rm{F_{2}}$, $\rm{Br_{2}}$ is:
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Chemistry
Electrochemistry
In which compound oxidation state of chlorine is +5:
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Chemistry
Electrochemistry
In which compound the oxidation number of Mn is +6:
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Chemistry
Electrochemistry
In a chemical reaction an oxidising agent:
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Chemistry
Electrochemistry
The gain of electron is known as:
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Chemistry
Electrochemistry
Which one of the following formulae contains nitrogen with an oxidation state of +5:
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Chemistry
Electrochemistry
Oxidation state of oxygen is $OF_{2}$ is:
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Chemistry
Electrochemistry
Oxidation number of carbon in $C_{2}H_{12}O_{6}$ is:
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Chemistry
Electrochemistry
Which of the following is correct definition of oxidation:
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Chemistry
Electrochemistry
In the reaction $2Fe + 3Cl_{2} \rightarrow 2FeCl_{3}$
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Chemistry
Electrochemistry
The oxidation number of chromium in $K_{2}Cr_{2}O_{7}$ is:
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Chemistry
Electrochemistry
In $KMnO_{4}$
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Chemistry
Electrochemistry
Which of the following elements has the same oxidation number in all of its known compounds:
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Chemistry
Electrochemistry
Fuel cells are the means by which chemical energy may be converted into:
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Chemistry
Electrochemistry
In lead accumulator (storage battery) cathode is made of:
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Chemistry
Electrochemistry
Which one of the following is a correct statement about battey and cell?
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Chemistry
Electrochemistry
Lead storage battery is recharged by:
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Chemistry
Electrochemistry
Which statement is incorrect for fuel cells?
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Chemistry
Electrochemistry
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