Home › CBSE Class 12 (Science) › Chemistry › Electrochemistry › In a Daniell cell, no current flows when the opp…
In a Daniell cell, no current flows when the opposing external voltage equals what?
A0.76 V
B0.34 V
C2.2 V
D1.1 V
Answer & Solution
Correct answer: D. 1.1 V
At 1.1 V the opposing voltage exactly balances the cell emf, so there is no electron flow and no reaction.
Related questions
Which gas combustion gives only water, making it central to the Hydrogen Economy?Which metal is mentioned for a sacrificial electrode to protect iron?What is the chemical form of rust?What is the overall Eo of the cell for rusting of iron?What is the Eo of the Fe2+/Fe couple in the corrosion reaction?During rusting of iron, the spot that acts as the anode undergoes what?The rusting of iron needs the presence of what?What useful by-product of the Apollo fuel cell was used by astronauts?