Home
Class 12
CHEMISTRY
Accidentally chewing on a stray fragmet ...

Accidentally chewing on a stray fragmet of aluminium foil can causes a sharp tooth path if the aluminium comes in contact with an amalgam filing. The filing, an alloy of silver, tin and mercury, acts as the cathode of a tiny galvanic cell, the aluminium behaves as the anode, and salivas serves as the electrolyte. when the aluminium and the filling come in contact, and electric current passage from the aluminium to the filling which is sensed by a nerve in the tooth. Aluminium is oxidized at the anode, and `O_(2)` gas is reduced to water at the cathode.
`E_(AI^(3+)//AI)^(@) =- 1.66 E_(O_(2)H^(+)//H_(2)O)6^(@) = 1.23 V`
Standard `E.M.F` experienced by the person with dental filing is:

A

0.43V

B

2.89V

C

3.98V

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Match the column type|16 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Subjective type|39 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Multiple objective type|33 Videos

  • D-BLOCK ELEMENTS

    GRB PUBLICATION|Exercise Subjective Type|18 Videos

  • ENVIRONMENTAL CHEMISTRY

    GRB PUBLICATION|Exercise Straight objective type|40 Videos

Similar Questions

Explore conceptually related problems

Accidentally chewing on a stray fragmet of aluminium foil can causes a sharp tooth path if the aluminium comes in contact with an amalgam filing. The filing, an alloy of silver, tin and mercury, acts as the cathode of a tiny galvanic cell, the aluminium behaves as the anode, and salivas serves as the electrolyte. when the aluminium and teh filling come in contact, and electric current passage from the aluminium to the filling which is sensed by a nerve in the tooth. Aluminium is oxidized at the anode, and O_(2) gas is reduced to water at the cathode. E_(AI^(3+)//AI)^(@) =- 1.66 E_(O_(2)H^(+)//H_(2)O)6^(@) = 1.23 V Net reaction taking place when amalgam is in contact with aluminium foil:

Accidentally chewing on a stray fragmet of aluminium foil can causes a sharp tooth path if the aluminium comes in contact with an amalgam filing. The filing, an alloy of silver, tin and mercury, acts as the cathode of a tiny galvanic cell, the aluminium behaves as the anode, and salivas serves as the electrolyte. when the aluminium and the filling come in contact, and electric current passage from the aluminium to the filling which is sensed by a nerve in the tooth. Aluminium is oxidized at the anode, and O_(2) gas is reduced to water at the cathode. E_(AI^(3+)//AI)^(@) =- 1.66 E_(O_(2)H^(+)//H_(2)O)6^(@) = 1.23 V The standard reduction potential of the reaction, H_(2)O +e^(-) rarr (1)/(2)H_(2)+OH^(-) at 298K is:

Cryolite is used in the electrolytic extraction of aluminium

The cathode used in the electrolytic cell of aluminium extraction is made of

In the electrolytic extraction of aluminium, the solvent is

GRB PUBLICATION-ELECTROCHEMISTY-Comprehension type
  1. Copper reduced NO(3)^(-) into NO and NO(2) depending upon cone. Of HNO...

    Text Solution

    |

  2. Copper reduced NO(3)^(-) into NO and NO(2) depending upon cone. Of HNO...

    Text Solution

    |

  3. Accidentally chewing on a stray fragmet of aluminium foil can causes a...

    Text Solution

    |

  4. The cavities in teeth is often filled with alloy of metals to avoid ba...

    Text Solution

    |

  5. Electrode potential data are used for predicting fessibility of any pr...

    Text Solution

    |

  6. Electrode potential data are used for predicting fessibility of any pr...

    Text Solution

    |

  7. Ag^(+)(aq)+e^(-)rarrAg(s) E^(@)=0.80V Cu^(2+)(aq)+2e^(-)rarrCu(s) E^...

    Text Solution

    |

  8. Ag^(+)(aq)+e^(-)rarrAg(s) E^(@)=0.80V Cu^(2+)(aq)+2e^(-)rarrCu(s) E^...

    Text Solution

    |

  9. Ag^(+)(aq)+e^(-)rarrAg(s) E^(@)=0.80V Cu^(2+)(aq)+2e^(-)rarrCu(s) E^...

    Text Solution

    |

  10. Rh^(03+)(aq)+3e^(-)rarrRh(s) E^(@)=0.80V Cu^(+)(aq)+e^(-)rarrCu(s) E...

    Text Solution

    |

  11. Rh^(03+)(aq)+3e^(-)rarrRh(s) E^(@)=0.80V Cu^(+)(aq)+e^(-)rarrCu(s) E...

    Text Solution

    |

  12. Al^(3+)(aq)+3e^(-)rarrAl(s) E^(@)=-1.66V Mn^(2+)(aq)+2e^(-)rarrMn(s)...

    Text Solution

    |

  13. Al^(3+)(aq)+3e^(-)rarrAl(s) E^(@)=-1.66V Mn^(2+)(aq)+2e^(-)rarrMn(s)...

    Text Solution

    |

  14. 2Al(s)+2Cu^(2+)(aq)rarr2Al^(3+)(aq)+2Cu(s) What is the value of E^(@...

    Text Solution

    |

  15. 2Al(s)+2Cu^(2+)(aq)rarr2Al^(3+)(aq)+2Cu(s) What value should be used...

    Text Solution

    |

  16. Use the standard reduction potentials to find the standard cell potent...

    Text Solution

    |

  17. Based on the standard reduction potentials above, which reaction(s) is...

    Text Solution

    |

  18. 2Ag^(+)(aq)+M(s)rarrM^(2+)(aq)+2Ag,E^(@)=0.940V What is the value of...

    Text Solution

    |

  19. 2Ag^(+)(aq)+M(s)rarrM^(2+)(aq)+2Ag,E^(@)=0.940V Which change will ca...

    Text Solution

    |

  20. 0.1 "mole" AgNO(3) is added in 250 mL of saturated solution of AgCl at...

    Text Solution

    |