Good night qes chemist

Q1 for a redox reaction to proceed in a cell the EMF must be
(a) positive
(b) negative
(c) zero
(d) fixed


Q2. Point out the correct statement in a cell of zinc and copper
(a) zinc acts as cathode and copper acts as anode
(b) zinc acts as anode and copper x as cathode 
(c) the standard reduction potential of zinc is more than that of copper
(d) the flow of electrons is from copper to zinc

Q3. Which of the following statements is incorrect about electrochemical cell?
(a) electrons are released at anode
(b) chemical energy is converted into electrical energy
(c) salt bridge maintains the electrical neutrality of the electrolytes
(d) cell can work indefinitely

Q4. In a galvanic cell which one of the following statements is not correct?
(a) anode is negative charged
(b) cathode is positively charged
(c) reduction takes place at anode
(d) reduction takes place at cathode

Q5. If the conductivity and conductance of a solution is same then its cell constant is equal to
(a)1
(b)0
(c)10
(d)1000

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