Home
Class 12
CHEMISTRY
Assertion : The maximum oxidation state ...

Assertion : The maximum oxidation state of chromium in its compounds is +6.
Reason : Chromium has only six electrons in ns and (n-1)d orbitals

A

If both (A) and (R) are correct and (R) is the correct explanation of(A).

B

If both (A) and (R) are correct, but(R) is not the correct explanation of (A).

C

If(A) is correct, but (R) is incorrect.

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THE D- AND F-BLOCK ELEMENT

    BRILLIANT PUBLICATION|Exercise LEVEL-II|100 Videos
  • SURFACE CHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTIONS (LEVEL - II) (ASSERTION REASON TYPE QUESTIONS) |6 Videos
  • THE D-AND F-BLOCK ELEMENTS

    BRILLIANT PUBLICATION|Exercise QUESTIONS (LEVEL-III)|50 Videos

Similar Questions

Explore conceptually related problems

The maximum oxidation state shown by Mn in its compound is.

Assertion : Aluminothermy is used for extraction of chromium from chromium oxide. Reason : Alumina has a high melting point.

Assertion : The maximum number of electrons in the shell with principal quantum number nis equal to 2n^(2) ?. Reason : Two electrons in an orbital have the same value of three quantum numbers n, l and m, but must have different spin quantum numbers.

Assertion: The highest oxidation state of Os is +8. Reason: Osmium is a 5d-block element.

Which one of the following actinoid has no electron in 6d orbital?

The most stable oxidation state of lanthanoid Is +3. But Yb shows on oxidation state of +2 in its compounds. Justify on the basis of electronic configuration.

Assertion : Transition elements shows horizontal similarities in addition to the main group elements. Reason : Their addition electron in a series enters into (n-1) d subshell.

BRILLIANT PUBLICATION-THE D- AND F-BLOCK ELEMENT-LEVEL-II (ASSERTION-REASON TYPE)
  1. Assertion : Zn, Cd and Hg are not considered as transition metals. R...

    Text Solution

    |

  2. Assertion : Anhydrous copper (II) chloride is covalent while anhydrous...

    Text Solution

    |

  3. Assertion : All the members of actinide series are radioactive in natu...

    Text Solution

    |

  4. Assertion : Transition metals show variable valency. Reason : Transi...

    Text Solution

    |

  5. Assertion : Silver fluoride is soluble in water. Reason : Hydration ...

    Text Solution

    |

  6. Assertion : Magnetic moment values of actinides are lesser than the th...

    Text Solution

    |

  7. Assertion : MnO is basic whereas Mn2O7, is acidic. Reason : Higher ...

    Text Solution

    |

  8. Assertion . The reaction of oxalic acid with acidified KMnO4 proceeds ...

    Text Solution

    |

  9. Assertion : In transition elements, radii of 5d series are virtually t...

    Text Solution

    |

  10. Assertion : The maximum oxidation state of chromium in its compounds i...

    Text Solution

    |

  11. Assertion : Magnetic moment of Mn^(2+) " is less than that of " Cr^(2+...

    Text Solution

    |

  12. Assertion : In the series Sc to Zn, the enthalpy of atomisation of zin...

    Text Solution

    |

  13. Assertion : In acidic medium, K2 Cr2 O7 " exists as " Cr2 O7^(2-) (ora...

    Text Solution

    |

  14. Assertion : Zr and Hf occur together in nature and are difficult to se...

    Text Solution

    |

  15. Assertion : The second ionization energies of " "(23) V,""(24)Cr and...

    Text Solution

    |

  16. Assertion": Mn'atom loses ns electrons first during ionization as comp...

    Text Solution

    |

  17. Assertion : In Cr2O7^(2-) ion, all the Cr-O bond lengths are equal. . ...

    Text Solution

    |

  18. Assertion : The purple colour of KMnO4, is due to the charge transfer ...

    Text Solution

    |

  19. Assertion : Atomic size of silver is almost the same as that of gold. ...

    Text Solution

    |

  20. Assertion : Actinoids show larger number of oxidation states than lant...

    Text Solution

    |