For the cell `Zn |Zn^(2+) | | Cu^(2+) | Cu` , if the concentration of `Zn^(2+)` and `Cu^(2+)` ions is doubled , the emf of the cell

Question

For the cell `Zn |Zn^(2+) | | Cu^(2+) | Cu` , if the concentration of `Zn^(2+)` and `Cu^(2+)` ions is doubled , the emf of the cell

For the cell `Zn |Zn^(2+) | | Cu^(2+) | Cu` , if the concentration of `Zn^(2+)` and `Cu^(2+)` ions is doubled , the emf of the cell
A. doubles
B. reduces to half
C. remains same
D. becomes zero

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

A secondary cell have source emf of 3 V. When this cell is connected to a load of 0.25 then load emf calculated is 2.10 V. The internal resistance of

2 Answers 4 Views

For the reaction, `A+Brarr"product"` If concentration of A is doubled, rate increases 4 times. If concentrations of A and B both are doubled, rate inc

2 Answers 9 Views

Concentration of `Na^(+)` ions outside a nerve cell is `~100` times more than inside. The concentration of `K^(+)` ions is more inside the cells. The

2 Answers 4 Views

Statement-I: In the Daniel cell, if concentration of `Cu^(2+)` and `Zn^(2+)` ions are doubled the emf of the cell will not change. Because Statement-I

2 Answers 4 Views

The standard emf of the cell `Zn+Cu^(2+)rarrCu+Zn^(2+)` is 1.10V at `25^(@)c` the emf of the cell when 0.1 M `Cu^(2)+` and 0.1 M `Zn^(2+)` solution ar

2 Answers 5 Views

Consider the following relations for (i) EMF of the cell =(Oxidation potential of anode) -(Reduction potential of cathode) (iii) EMF of the cell=(Redu

2 Answers 5 Views

Assertion `(A) :` In a Daniell cell, if the concentration of `Cu^(2+)` and `Zn^(2+)` ions are doubled, the `EMF` of the cell will be doubled. Reason `

2 Answers 5 Views

The rate of reaction, 2NO + `Cl_(2) to 2NOCl` is doubled when concentration of `Cl_(2)` is doubled and becomes eight times when concentration of both

2 Answers 4 Views

For the reaction `A +2B to C`, the reaction rate is doubled if the concentration of A is doubled. The rate becomes four times when the concentration o

2 Answers 4 Views

The rate of reaction `2NO + Cl_(2) to 2NOCl` is doubled when the concentration of `Cl_(2)` is doubled and becomes eight times when the concentration o

2 Answers 8 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`E_("cell") = E_("cell")^(@) + (0.059)/(2) "log" ([Cu^(2+)])/([Zn^(2+)])` , Thus on doubling concentration of both `Cu^(2+) and Zn^(2+)` , there will be no effect on `E_("cell")`.

4 views Answered 2023-02-05 15:29