Home
Class 12
CHEMISTRY
Fe(OH)(3) and Cr(OH)(3) precipitates can...

`Fe(OH)_(3)` and `Cr(OH)_(3)` precipitates can be completely separated by `:`

A

`Aq.NH_(3)`

B

`HCl`

C

`NaOH//H_(2)O_(2)`

D

`H_(2)SO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
3
Both dissolves inacids.` Cr(OH)_(3)` is partially soluble whiel `Fe(OH)_(3)` is not soluble in aqueous `NH_(3)`. Only `Cr(OH)_(3)` not `Fe(OH)_(3)` in soluble by `NaOH//H_(2)O_(2)` according to the reaction.
`Cr(OH)_(3)darr("green")overset(NaOH//H_(2)O_(2))rarrCrO_(4)^(2-)("yellow solution")+H_(2)O`.
Promotional Banner

Topper's Solved these Questions

  • PERIODIC TABLE & PERIODICITY

    RESONANCE|Exercise Advanced Level Problems|107 Videos

  • QUALITATIVE ANALYSIS (ANION)

    RESONANCE|Exercise Matching List Type|1 Videos

Similar Questions

Explore conceptually related problems

A mixture of Be(OH)_(2) and Fe(OH)_(3) can be separtated easily by treating it with

A mixture Al(OH)_(3) and Fe(OH)_(3) is given to you. How would you separate it??

A mikxture of Al (OH)_(3) and Fe(OH)_(3) can be sparted easily be treating it with:

Assertion : Fe(OH)_(3) and As_(2)S_(3) colloidal sols on micing fro precipitate. Reason : Fe(OH)_(3) and As_(2)S_(3) combine to from precipitate of new compound.

Assertion: Fe(OH)_(3) and As_(2)S_(3) colloidal sol on mixing precipitates. Reason: Fe_(OH)_(3) and As_(2)S_(3) combine and form new compistion precipate.

RESONANCE-QUALITATIVE ANALYSIS-INORGANIC CHMISTRY(Qualitative analysis)
  1. When NH4OH is added to copper sulphate solution, blue colour is obtain...

    Text Solution

    |

  2. When NH(4)Cl is added to a solution of NH(4)OH :

    Text Solution

    |

  3. Tumbuli's blue is a ……………………….

    Text Solution

    |

  4. Fe(OH)(3) and Cr(OH)(3) precipitates can be completely separated by :

    Text Solution

    |

  5. Cu^(2+) and Ag^(+) are both present in the same solution.To precipitat...

    Text Solution

    |

  6. Nessler's reagent is :

    Text Solution

    |

  7. When sodium carbonate is added in excess to a metal chloride solution ...

    Text Solution

    |

  8. Barium sulphate on fusion charcoal and sodium carbonate yields a compo...

    Text Solution

    |

  9. Which of the following compound is formed in borax bead test ?

    Text Solution

    |

  10. A substance responds to the following test : (a) It gives a green pr...

    Text Solution

    |

  11. An original solution of an inorganic salt in dilute HCl gives a brown ...

    Text Solution

    |

  12. Which of the following statements is// are correct ? (I) White preci...

    Text Solution

    |

  13. Match the List -I (containing anions ) with List -II (containing reage...

    Text Solution

    |

  14. List-I contains the reactants and the List-II contains the particulars...

    Text Solution

    |

  15. A substance (A) is water insoluble On bubbling Cl(2) through its suspe...

    Text Solution

    |

  16. A solution of a sodium salt gives yellow precipitate with both Pb^(2+)...

    Text Solution

    |

  17. Which of the following statements is incorrect ?

    Text Solution

    |

  18. How do we differentiate between CO(3)^(2-) and SO(3)^(2-) in dilute H(...

    Text Solution

    |

  19. Ferric alum gives deep red colour with NH(4)SCN due to the formation o...

    Text Solution

    |

  20. A mixture upon along adding conc. H(2)SO(4) gives deep red fumes. It m...

    Text Solution

    |