Answer
Verified
468.3k+ views
Hint: The standard reduction potential of a chemical is the reduction potential of a chemical or molecule under precise standard conditions to lose its electrons or to gain electrons. It is useful in determining the directionality of a chemical reaction.
Complete answer:
> We know that the potential of a given chemical can be considered to be negative if the chemical loses its electrons and the potential of a given chemical can be considered to be positive if the chemical accepts its electrons.
> Absolute electrode potential of an electrode cannot be determined without forming a complete cell. Therefore, hydrogen is selected as a standard reference electrode, and describes its electrode potential as zero.
> Coming to given options, option B, Hydrogen is easiest to oxidise, it is not true.
> Coming to option C, Hydrogen has a single electron. Because of a single electron nobody will choose hydrogen as a standard electron.
> Coming to option D, Hydrogen is electronegative. It is also wrong, because electronegativity of hydrogen is very less.
> Coming to option A, It is assumed. Yes we assumed that the standard reduction potential of hydrogen electrode is zero.
So, the correct option is A.
Note: Don’t be confused with the terms reduction potential and oxidation potential.
Reduction potential: It is defined as the tendency of a chemical to gain electrons and it will be reduced.
Oxidation potential: It is defined as the tendency of a chemical to lose electrons and it will be oxidised.
Complete answer:
> We know that the potential of a given chemical can be considered to be negative if the chemical loses its electrons and the potential of a given chemical can be considered to be positive if the chemical accepts its electrons.
> Absolute electrode potential of an electrode cannot be determined without forming a complete cell. Therefore, hydrogen is selected as a standard reference electrode, and describes its electrode potential as zero.
> Coming to given options, option B, Hydrogen is easiest to oxidise, it is not true.
> Coming to option C, Hydrogen has a single electron. Because of a single electron nobody will choose hydrogen as a standard electron.
> Coming to option D, Hydrogen is electronegative. It is also wrong, because electronegativity of hydrogen is very less.
> Coming to option A, It is assumed. Yes we assumed that the standard reduction potential of hydrogen electrode is zero.
So, the correct option is A.
Note: Don’t be confused with the terms reduction potential and oxidation potential.
Reduction potential: It is defined as the tendency of a chemical to gain electrons and it will be reduced.
Oxidation potential: It is defined as the tendency of a chemical to lose electrons and it will be oxidised.
Recently Updated Pages
10 Examples of Evaporation in Daily Life with Explanations
10 Examples of Diffusion in Everyday Life
1 g of dry green algae absorb 47 times 10 3 moles of class 11 chemistry CBSE
What happens when dilute hydrochloric acid is added class 10 chemistry JEE_Main
What is the meaning of celestial class 10 social science CBSE
What causes groundwater depletion How can it be re class 10 chemistry CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Which are the Top 10 Largest Countries of the World?
How do you graph the function fx 4x class 9 maths CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
In the tincture of iodine which is solute and solv class 11 chemistry CBSE
Why is there a time difference of about 5 hours between class 10 social science CBSE