The emf of the following three galvanic cells are respresented by `E_(1), E_(2)` and `E_(3)` respectively. Which of the following is correct? (i) `Zn//Zn^(2+) (1M)// //Cu^(2+)(1M)//Cu` (ii) `Zn//Zn^(2+) (0.1M)// //Cu^(2+)(1M)//Cu` (iii) `Zn//Zn^(2+)(1M)// //Cu^(2+)(0.1M)//Cu`
A
`Zn"|"z^(2+)(1M)"||"Cu^(2+)(1M)"|"Cu`
B
`Zn"|"z^(2+)(0.1M)"||"Cu^(2+)(1M)"|"Cu`
C
`Zn"|"z^(2+)(1M)"||"Cu^(2+)(0.1M)"|"Cu`
D
`Zn"|"z^(2+)(0.1M)"||"Cu^(2+)(0.1M)"|"Cu`
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
ELECTROCHEMISTRY
NARENDRA AWASTHI|Exercise Level 1 (Q.1 To Q.30)|1 Videos
ELECTROCHEMISTRY
NARENDRA AWASTHI|Exercise Level 1 (Q.91 To Q.120)|1 Videos
DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 3 - Match The Column|1 Videos
Which of the following alloys contains Cu and Zn ?
When E_(Ag^(+) | Ag)^@ = 0.80 volt and E_(Zn^(2+)|Zn)^@ = 0.76 volt, which of the following is correct?
E^@ values of Zn^(2+), Zn and Cu^(2+), Cu are respectively -0.76 V and + 0.34 . Calculate the EMF of the cell Zn//Zn^(2+) (0.1M)"//"Cu^(2+)(0.1 M)//Cu .
Calculate the EMF of Zn//Zn^(2+)(0.1)"//"Cu^(2+)(0.1)//Cu E^(@) of Zn^(2+)//Zn = 0.762V , E^(@) of Cu^(2+)//Cu = +0.337V
Write the cell reactions for a) Ni//Ni^(2+)// //Cu^(2+)//Cu b) Cu^(2+)//Cu"//"Cl^(-) 1/2 Cl_(2)
Which of the following ions would form colourless complexes? Cu^(2+), Zn^(2+), Ti^(3+), Ti^(4+), Cd^(2+)
The EMF of the following cells are Cu|Cu^(2+) (1M)||Ag^(+) (1M)|Ag, E^@ = 0.46 V Zn|Zn^(2+) (1M)||Cu^(2+) (1M)|Cu, E^@ = 1.10 V The EMF of the cell Zn|Zn^(2+)(1M)|| Ag^(+ )(1M) | Ag will be
Which of the following reagents will not be useful in separating a mixture of Zn^(2+) and Cu^(2+)
Which of the following statements is correct ? If E_(Cu^(2+)|Cu)^(@) = 0.34 V and E_(Sn^(2+)|Sn)^(@) = -0.136 V , E_(H^(+)|H_2)^(@) = -0.0V