Voltaic cell

oxidation in voltaic cell occur at

• anode

• cathode

• salt bridge

• voltmeter

Reduction in voltaic cell occur at

• anode

• cathode

• voltmeter

• salt bridge

Reaction in voltaic cell are

• non-spontaneous,

  redox reaction

• Spontaneous, redox reaction

• Spontaneous,

  non-redox reaction

• non-spontaneous,

  non-redox reaction

What is the function of Y in cell below

• to ecomplete the circuit

• to connect both half cell

• to allow flow of ions

• to allow follow of electron between both cells

In which direction does electricity flow in a voltaic cell (baterry) ?

• electron flow from the cathode to anode

• electron flow from anode to cathode

• electron flow from left to right

• electron flow from right to left

choose the right cell notation

• zn2+(aq,1M)/zn(s)II cu(s)/cu2+(aq,1M)

• zn(s)/zn2+(aq,1M)II cu2+(aq,1M)/cu(s)

• cu(s)/cu2+(aq,1M)II zn(s)/zn2+(aq,1M)

• zn(s)/cu(s)II cu2+(aq,1M)/ zn2+(aq,1M)

In an electrolytic cell the electrode at which the electrons enter the solution is called____; the chemical change that occurs at this electrode is called ____.

• anode, oxidation

• anode,reduction

• cathode, oxidation

• cathode,reduction

Which of the following statements is FALSE ?

• Oxidation and reduction half-reaction occur at electrodes in electrochemical cells

• Reduction occurs at the cathode

• Oxidation occurs at the anode

• All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reaction

In a voltaic cell, the half cell that receives anions from the salt bridge is

• cathode

• anode