Home
Class 12
CHEMISTRY
Give reasons: Name one ore each of the m...

Give reasons: Name one ore each of the manganese and chromium.

Promotional Banner

Topper's Solved these Questions

  • EXAM PAPER 2012

    ASSAM ACADEMIC CENTRE|Exercise Example|70 Videos

  • General Principles of Processes of Isolation of Elements

    ASSAM ACADEMIC CENTRE|Exercise Example|171 Videos

Similar Questions

Explore conceptually related problems

Name one ore of Manganese and Chromium.

Give reasons for each of the following obervations: Diazonium ion acts as electrphile.

Name chief ore of iron.

Give reasons for each of the following oberva-tions: Even under mild conditions aniline on bromi-natoin gives 2,4,6, tribromo aniline.

Give one example each of : a basic amino acid.

Give one example of each of Sandmeyer reac^n

Give one example each of the surface coating agent and sacrificial metal.

Give one important use of each of the following in pharmachy. Morphine.

Give one important use of each of the following in pharmachy. Equanil.

ASSAM ACADEMIC CENTRE-EXAM PAPER 2013-Example
  1. Calculate the emf of the cell at 298K, in which the following reaction...

    Text Solution

    |

  2. Ozone acts as a powerful oxidizing agent. Give reason.

    Text Solution

    |

  3. Answer the following: Complete the following reaction: HNO3 overset(P4...

    Text Solution

    |

  4. Answer the following: Which reaction was used by Bartlett to prepare t...

    Text Solution

    |

  5. Answer the following: KHF2 is known but KHCl2 is not known. Give reaso...

    Text Solution

    |

  6. Answer the following: Bismuth is a strong oxidizing agent in the penta...

    Text Solution

    |

  7. Complete the following chemical reaction equations: F2(g) + H2O(l) rar...

    Text Solution

    |

  8. Complete the following chemical reaction equations: Ca3P2(s) + H2O(l) ...

    Text Solution

    |

  9. Complete the following chemical reaction equations: P4 + NaOH + H2O ra...

    Text Solution

    |

  10. Draw the structure of the following molecules and mention their shapes...

    Text Solution

    |

  11. Draw the structure of the following molecules and mention their shapes...

    Text Solution

    |

  12. Give reasons: Why are Zn, Cd, and Hg normally not regarded as transiti...

    Text Solution

    |

  13. Give reasons: Why is first ionization enthalpy of Cu is higher than th...

    Text Solution

    |

  14. Give reasons: Name one ore each of the manganese and chromium.

    Text Solution

    |

  15. Give reasons: Why is HCl not used to acidify a permanganate solution i...

    Text Solution

    |

  16. Give reasons: What is lanthanoid contraction?

    Text Solution

    |

  17. How would you account for the following? Transition metals and many of...

    Text Solution

    |

  18. How would you account for the following? The enthalpies of atomization...

    Text Solution

    |

  19. How would you account for the following? The transition metal compound...

    Text Solution

    |

  20. How potassium permanganate is prepared? Give necessary chemical equati...

    Text Solution

    |