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Q1. Which of the following is not a type of electrochemical cell?

(a) Voltaic cell
(b) Photovoltaic cell
(c) Electrolytic cell
(d) Fuel Cell

Q2. Which of the following is not a characteristic feature of a salt bridge?

(a) Salt bridge joins the two halves of an electrochemical cell
(b) It completes the inner circuit
(c) It is filled with a salt solution (or gel)
(d) It does not maintain electrical neutrality of the electrolytic solutions of the half-cells

Q3. Why are the saturated solutions of electrolytes for the salt bridge prepared in agar-agar jelly or gelatin?

(a) The jelly acts as an electrolyte
(b) It helps the electrolytes to mix with the contents of the half cells
(c) It helps maintain the electrical polarity between the two half-cell solutions
(d) It keeps the electrolyte in semi-solid phase and prevents it from mixing with the two half-cell solutions

Q4. Which of the following factors does not affect the electrode potential of an electrode?

(a) Nature of the electrode (metal)
(b) Temperature of the solution
(c) Molarity of the solution
(d) Size of the electrode

Q5. Which of the following statements is correct regarding Electrochemical cells?

(a) Cell potential is an extensive property
(b) Cell potential is an intensive property
(c) The Gibbs free energy of an electrochemical cell is an intensive property
(d) Gibbs free energy is undefined for an electrochemical cell

Q6. When no current is drawn through an electrochemical cell, the sum of the electrode potentials of the two electrodes is called cell emf. True or False?

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q7. Which of the following is not a generally used electrolyte in the salt bridges used to connect the two half-cells of an electrochemical cell?

(a) NaCl
(b) KNO3
(c) KCl
(d) ZnSO4

Q8. When equilibrium is reached inside the two half-cells of the electrochemical cells, what is the net voltage across the electrodes?

(a) > 1
(b) < 1
(c) = 0
(d) Not defined

Q9. An electrochemical cell generally consists of a cathode and an anode. Which of the following statements is correct with respect to the cathode?

(a) Oxidation occurs at the cathode
(b) Electrons move into the cathode
(c) Usually denoted by a negative sign
(d) Is usually made up of insulating material

Q10. An electrochemical cell can only convert electrical energy to chemical energy.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned


0 votes
0 Answer
813 views

Assertion : 1.231 Has Three Significant Figures. Reason : All Numbers Right To The Decimal Point Are Significant

Modified 239 Year Ago Jane

813
Jane
239 Year Ago

Assertion : 1.231 Has Three Significant Figures. Reason : All Numbers Right To The Decimal Point Are Significant

0 votes
0 Answer
800 views

Assertion : Gases Combine In Simple Ratio Of Their Volume But, Not Always. Reason : Gases Deviate From Ideal Behaviour.

Modified 239 Year Ago Adam

800
Adam
239 Year Ago

Assertion : Gases Combine In Simple Ratio Of Their Volume But, Not Always. Reason : Gases Deviate From Ideal Behaviour.

0 votes
0 Answer
748 views

A Sample Of Phosphorus Trichloride (PCL3) Contains 1.4 Moles Of The Substance. How Many Atoms Are There In Atoms Sample

Modified 240 Year Ago Sangeeta

748
Sangeeta
240 Year Ago

A Sample Of Phosphorus Trichloride (PCL3) Contains 1.4 Moles Of The Substance. How Many Atoms Are There In Atoms Sample

0 votes
0 Answer
627 views

The Significant Figures In 34.00 Are

Modified 239 Year Ago Sangeeta

627
Sangeeta
239 Year Ago

The Significant Figures In 34.00 Are

0 votes
0 Answer
474 views

The Passege Of Current Liberates H2 At Cathode And CL2 At Anode. The Solution Is

Modified 233 Year Ago Vipul

474
Vipul
233 Year Ago

The Passege Of Current Liberates H2 At Cathode And CL2 At Anode. The Solution Is

0 votes
0 Answer
458 views

Assertion : Atoms Can Neither Be Created Nor Destroyed. Reason : Under Similar Condition Of Temperature And Pressure, Equal Volume Of Gases Does Not Contain Equal Number Of Atoms.

Modified 239 Year Ago Jennifer

458
Jennifer
239 Year Ago

Assertion : Atoms Can Neither Be Created Nor Destroyed. Reason : Under Similar Condition Of Temperature And Pressure, Equal Volume Of Gases Does Not Contain Equal Number Of Atoms.

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