What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

Choose the right option among the alternatives – A thyristor goes into full conduction in its forward direction when anode/cathode/gate is positive with respect to its anode/cathode/gate and a turn-on voltage or current signal in the form of a pulse is given to its anode/ cathode/gate.

A

Cathode, anode, gate

B

Gate, anode, cathode

C

Anode, cathode, gate

D

Anode, gate, cathode

তড়িৎ রাসায়নিক কোষের emf = ?i. E° Anode(ox) + E°Cathode (Red) 11. E Cathode(Red) - E°Anode (Red) 111. E° Anode(ox) - E°Cathode (Red) নিচের কোনটি সঠিক?

A

i ও ii

B

i ও iii

C

ii ও iii

D

i, ii ও iii

Which statement is correct about Faraday’s Laws of Electrolysis? Statement 1: After his extensive investigations on electrolysis of solutions and melts of electrolytes, Faraday published his results during 1833-34 in the form of well known Faraday’s two laws of electrolysis. Statement 2: He used a coulometer (a standard electrolytic cell) for determining the quantity of electricity passed from the amount of metal (generally silver or copper) deposited or consumed.

A

Statement 1 is correct

B

Statement 2 is correct

C

Both are correct

D

Both are incorrect

Assertion (A) For a galvanic cell, oxidation takes place at anode and reduction at cathode.
Reason (R) Electrons in the external circuit move from anode to cathode

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true, but R is not the correct explanation of A

C

A is true, but R is false

D

A is false, but R is true

Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

A

Oxidation of Na⁺ ions

B

Oxidation of Cl^- ions

C

Reduction of Na⁺ ions

D

Reduction of Cl^- ions

An electrolytic refining cell for copper consists of an alloy with activity of copper ac_u = 0.8 as the anode, and pure copper as the cathode. What is the absolute value of the cell potential (in millivolts) at 25°C, given that copper is divalent? Faraday constant is 96500 C/mol and the universal gas constant is 8.314 J/(mol.K).

A

2.9

B

4.6

C

6.8

D

8.9

Which option is correct about the electrolytic cell are correct? Many metals like Na, Mg, Al, etc. are produced on a large scale by electrochemical reduction of their respective cations where no suitable chemical reducing agents are available for this purpose. Sodium and magnesium metals are produced by the electrolysis of their fused chlorides and aluminum is produced by electrolysis of aluminum oxide in the presence of cryolite.

A

Option 1 is correct

B

Option 2 is correct

C

Both are correct

D

Both are incorrect

Cathode used in electrolysis of brine by diaphragm cell type is _____________

A

Lead

B

Iron

C

Titanium

D

Carbon

Which of the following is a correct method to calculate the EMF of a galvanic cell? + b) Standard EMF of the cell = – c) E°cell = E°cathode – E°anode d) Standard EMF of the cell = +

A

Standard EMF of the cell = +

B

Standard reduction potential of the reduction half reaction

C

Standard reduction potential of the reduction half reaction

D

Standard reduction potential of the reduction half reaction

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

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

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