Home
Class 12
CHEMISTRY
A green chromium compound (C). Identify...

A green chromium compound
(C). Identify A, B, C. Write equations for reactions.

Text Solution

Verified by Experts

`A : FeCr_(2) O_(4) " " B: Na_(2) Cr_(4) " " C : Na_(2) Cr_(2) O_(7)`
`4FeCr_(2) O_(4) + 8Na_(2) CO_(3) + 7O_(2) to 8Na CrO_(4) + 2Fe_(2) O_(3) + 8CO_(2)`
`(A) " " (B )`
`Na_(2) CrO_(4)+ H_(2) SO_(4) to Na_(2) Cr_(2) O_(7) + Na_(2) SO_(4) + H_(2) O`
Promotional Banner

Topper's Solved these Questions

  • The d- AND f-BLOCK ELEMENTS

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER TYPE QUESTION|5 Videos

  • The d- AND f-BLOCK ELEMENTS

    CBSE COMPLEMENTARY MATERIAL|Exercise Short answer type question|22 Videos

  • SURFACE CHEMISTRY

    CBSE COMPLEMENTARY MATERIAL|Exercise LONG ANSWER TYPE QUESTIONS (5 MARKS)|4 Videos

Similar Questions

Explore conceptually related problems

Identify A, B, and C, in the following reaction.

(a) A blackish brown coloured solid 'A' when fused with an alkali metal hydroxide in the presence of air, produces a dark green colored compound 'B' which upon electrolytic oxidation in alkaline medium gives a dark purple coloured compound 'C'. Identify A,B and C and write the reactions involved. (b) What happesn when acidic solution of green compound (B) is allowed to stand for sometime? Give the equation involved. What is this type of reaction called ?

An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.

Identify A, B and C and write chemical equtions.

Identify A,B,C,"…." in the given reaction sequence .

CBSE COMPLEMENTARY MATERIAL-The d- AND f-BLOCK ELEMENTS-SHORT ANSWER-II TYPE QUESTION
  1. Write any four differences between lanthanoids and actinoids. Lanth...

    Text Solution

    |

  2. give reason for the following statement (a)separation of lanthanoid el...

    Text Solution

    |

  3. (b) Transition metal exhibit higher enthalpies of atomization. Explain...

    Text Solution

    |

  4. (c) Why do the transition metal have high enthalpy of hydration ?

    Text Solution

    |

  5. (a) By using Hund’s rule derive the electronic configuration of Ce^(+3...

    Text Solution

    |

  6. (b) Is lanthanum a f-block element ?

    Text Solution

    |

  7. Account for the following : (a) Silver chloride dissolves in excess ...

    Text Solution

    |

  8. Account for the following : (b) Cuprous chloride is diamagnetic whil...

    Text Solution

    |

  9. Account for the following : In CrO(4)^(2-) ion , all the Cr-O bond...

    Text Solution

    |

  10. The values in respect of electrodes of Cr, Mn and iron are : Cr^(+3...

    Text Solution

    |

  11. Write any three properties of interstitial compounds.

    Text Solution

    |

  12. Account for the following : (a) All Scandium salts are white.

    Text Solution

    |

  13. Account for the following : (b) The Ist ionization energy of the 5d ...

    Text Solution

    |

  14. Account for the following : (c) Ce^(+3) can be easily oxidized to Ce...

    Text Solution

    |

  15. A green chromium compound (A) on fusion with alkali gives a yellow

    Text Solution

    |

  16. A green chromium compound (B) which on acidification gives a orange c...

    Text Solution

    |

  17. A green chromium compound (C). Identify A, B, C. Write equations for ...

    Text Solution

    |

  18. When an oxide of Mn (A) is fused with KOH in the presence of an oxi...

    Text Solution

    |

  19. When an oxide of Mn (B). Compound (B) disproportionate in neutral or...

    Text Solution

    |

  20. When an oxide of Mn (C). Identify A, B, C.

    Text Solution

    |