Home
Class 12
CHEMISTRY
Element A( atomic mass 112) and element ...

Element A( atomic mass 112) and element B (atomic mass 27) from chlorides. Solutions of these chlorides are electrolysed seperately and it is found that when the same quantity of electricity is passed 5.6 g of A was deposited while only 0.9 g if B was deposited. If the valency of B is 3, then the valency of A is _________.

A

2

B

3

C

4

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|103 Videos

  • D AND F-BLOCK ELEMENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    TARGET PUBLICATION|Exercise Evaluation Thinking|15 Videos

Similar Questions

Explore conceptually related problems

Salts of A (atomic weight 7 ), B (atomic weight 27 ) and C (atomic weight 48 ) were electolysed under idential condition using the same quanity of electricity. It was found that when 2.1 g of A was deposited, the weights of B and C deposited were 2.7 and 7.2 g . The valencies A, B and C respectively:

The atomic mass of an element is 27. If valency is 3, the vapour density of the volatile metal chloride will be :

0.02 equivalent of Ag was deposited in an electrolysis experiment. If same quantity of a electricity is passed through a gold solution, 1.314 g of gold is deposited. Find oxidation state of the gold. (Atomic mass of Au = 197)

When a current of 3A is passed through an aqueous solution of a palladium salt, the mass of Pd metal deposited in 1 hour is 2.98 g. If the metal's atomic mass is 106.4, the valency of palladium is _________.

TARGET PUBLICATION-ELECTROCHEMISTRY-EVALUATION TEST
  1. Water is a non-electrolyte but conducts electricity on dissovling a sm...

    Text Solution

    |

  2. Twoelectrodes are fitted in conductance cell 1.5 cm apart while the ar...

    Text Solution

    |

  3. If the cell constant is 0.5 cm^(-1) and the resistance is 50 "ohm" , t...

    Text Solution

    |

  4. A solution of a trivalent metal ion is electrolysed by a current of 5 ...

    Text Solution

    |

  5. In a hydrogen-oxygen fuel cell, combustion of hydrogen occurs to :

    Text Solution

    |

  6. The standard reduction potentials at 25^(@)C for the following half re...

    Text Solution

    |

  7. Which coloruless gas evolves when NH(4)CI reacts with zinc in a dr...

    Text Solution

    |

  8. Electrolyte can conduct electricity because .

    Text Solution

    |

  9. The standard electrode potential of calomel electrode in 1 M KCl is .0...

    Text Solution

    |

  10. A current is passed through two cells connected in series. The first c...

    Text Solution

    |

  11. Time required to deposit 90 g of Al from an electrolytic cell containi...

    Text Solution

    |

  12. Standard reduction potential values for the electrodes are given below...

    Text Solution

    |

  13. The reaction (1)/(2)H(2)(g)+AgCl(s)hArrH^(+)(aq)+Cl^(-)(aq)+Ag(s) ...

    Text Solution

    |

  14. What will be the reduction potential of a hydrogen electrode which is ...

    Text Solution

    |

  15. Element A( atomic mass 112) and element B (atomic mass 27) from chlori...

    Text Solution

    |

  16. A current of 3.7 A is passed for six hours between Ni electrodes in 0....

    Text Solution

    |

  17. which of the following will increase the voltage of the cell with fol...

    Text Solution

    |

  18. An aqueous solution containing one mole per litre of each Cu(NO(3))(2...

    Text Solution

    |

  19. When the electric current is passed through a cell having an electroly...

    Text Solution

    |