Electrochemistry Test

Result

Electrochemistry Test - 4

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Statement -1 : In a dry cell zinc acts as cathode and carbon rod as anode.

Statement -2 : A dry cell has a potential of nearly 1 .5 V.

A
Both Statement-1 and Statement-2 are true and Statement-2 is the correct explana tion of Statement -1.

B
Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement -1.

C
Statement-1 is true but Statement-2 is false.

D
Statement-1 is false but Statement-2 is true.

Solution

In dry cell, zinc acts as anode and carbon (graphite) rod as cathode. Dry cell has a potential of nearly 1.5 V.
Question 2
1 / -0

Current carried by, during the passage of electricity through the solution of an electrolyte, is

A
cations only

B
anions only

C
both cations and anions, fractions of current carried being equal

D
both cations and anions, usually fractions carried being different

Solution

On pulling out one of the electrodes the electric field applied to the solution disappears and hence the ions start moving randomly.
Question 3
1 / -0

When electric current is passed through a cell having an electrolytic solution, the cations move towards the cathode and anions towards the anode. If anode is pulled out from the solution, then

A
the cations will continue to move towards cathode and anions will stop moving

B
the cations and anions will start moving randomly.

C
both the cations and anions will stop moving

D
the cations and anions will move towards the cathode

Solution

If anode is pulled out from the solution then both the cations and anions will stop moving.