Home
Class 12
CHEMISTRY
KCN is used for the separation of :...

KCN is used for the separation of :

A

`Na^(+) and K^(+) `

B

`Cu^(2+) and Cd^(2+) `

C

`Ba^(2+) and Ca^(2+)`

D

`Zn^(2+) and Cd^(2+) `

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES , KETONES AND CARBOXYLIC ACIDS

    MODERN PUBLICATION|Exercise Multiple Choice Questions ( Level - III )|10 Videos

  • BIOMOLECULES

    MODERN PUBLICATION|Exercise Recent Examination Questions|13 Videos

Similar Questions

Explore conceptually related problems

Which of the following reagent is used for the separation of acetaldehyde from accetophenone?

Chromatography technique is used for the separation :

Which reagent is commonly used for the separation of 1^(@) , 2^(@) and 3^(@) amines ?

Name the separating method used for the separtion of glycerol from spent lye.

Which of the following recent techniques is used for separating fragments of DNA ?

MODERN PUBLICATION-APPENDIX A-Multiple Choice Questions (Level-I)
  1. Which of the following sulphide is not soluble in dil. HNO3 ?

    Text Solution

    |

  2. A colourless salts gives grassy green colour in bunsen flame, it may b...

    Text Solution

    |

  3. KCN is used for the separation of :

    Text Solution

    |

  4. Ammonia gas when passed through Nessler's reagent , forms a brown prec...

    Text Solution

    |

  5. Chlorides react with conc. H2SO4 and evolve :

    Text Solution

    |

  6. Equivalent weight of an acid may be expressed as :

    Text Solution

    |

  7. Which of the following statement is not correct ?

    Text Solution

    |

  8. Fe , Al and Cr are grouped together in qualitative analysis because :

    Text Solution

    |

  9. Fe drops of conc. HNO3 are added to group II filtrate before proceedin...

    Text Solution

    |

  10. An inorganic salt when heated evolves a colourless gas which bleaches ...

    Text Solution

    |

  11. Borax when heated on platinum wire forms a glass - like bead which is...

    Text Solution

    |

  12. Aqueous solution of an acetate salt, when heated with FeCl3 solution g...

    Text Solution

    |

  13. Nitric acid is generally not used for preparing original solution in ...

    Text Solution

    |

  14. Acidified K2Cr2O7 solution turns green by:

    Text Solution

    |

  15. Which of the following statement is not correct ?

    Text Solution

    |

  16. Which of the following statement is not true ?

    Text Solution

    |

  17. The enthalpy of neutralisation of all strong acids with strong bases i...

    Text Solution

    |

  18. Carboxylic acid group can be tested by all the following tests except

    Text Solution

    |

  19. 2, 4-Dinitrophenylhydrazine test is used for :

    Text Solution

    |

  20. Alcohols react with ceric ammonium nitrate reagent and give :

    Text Solution

    |