Home
Class 12
CHEMISTRY
Assertion :- Cr^(+2) is a reducing agent...

Assertion :- `Cr^(+2)` is a reducing agent and `Mn^(+3)` is oxidising agent.
Reason :- `Mn^(+3)` has `d^(5)` configuration.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    ALLEN|Exercise EXERICSE - 3|30 Videos

  • Redox Reaction

    ALLEN|Exercise All Questions|15 Videos

  • s-Block element

    ALLEN|Exercise All Questions|13 Videos

Similar Questions

Explore conceptually related problems

Assertion : Cr^(2+) is reducing and Mn^(3+) is oxidising. Reason : Cr^(2+) and Mn^(3+) have d^4 configuration.

Which of the following statement are correct about Cr^(2+) (Z = 24) and Mn^(3+) (Z = 25) ? (i) Cr^(2+) is a reducing agent (ii) Mn^(3+) is an oxidizing agent (iii) Both Cr^(2+) and Mn^(3+) exhibit d^(4) configuration (iv) When Cr^(2+) is used as a reducing agent, the chromium ion attains d^(5) electronic configuration

The ion Cr^(2+) is redusing agent while that of Mn^(3+) is an oxidising agent though both have 3d^(4) configuration. This is because

Four statement of Cr and Mn are given below. (P). Cr^(2+) and Mn^(3+) have the same electronic configuration. (Q). Cr^(2+) is a reducing agent while Mn^(3+) in an oxidizing agent. (S). Both Cr and Mn are oxidizing agent. The correct statement are:

Why is Cr^(2+) reducing and Mn^(3+) oxidising when both have d^(4) configuration ?

ALLEN-REDOX REACTIONS-EXERICSE - 4
  1. Assertion :- Oxidation state of Hydrogen is +1 in H(2)O while -1 in Ca...

    Text Solution

    |

  2. Assertion :- Oxidation number of carbon in CH(2)O is zero. Reason :-...

    Text Solution

    |

  3. Assertion :- Nitrous acid (HNO(2)) may act as an oxidising agent as we...

    Text Solution

    |

  4. Assertion :- Oxidation number of Ni in [Ni(CO)(4)] is zero. ltbr. Reas...

    Text Solution

    |

  5. Assertion :- A reducing agent is a substance which accepts electron. ...

    Text Solution

    |

  6. Assertion :- Bromide ion is serving as a reducing agent in the reactio...

    Text Solution

    |

  7. Assertion :- Equivalent weight of NH(3) in the reaction N(2) rarrNH(3)...

    Text Solution

    |

  8. Assertion :- In acidic medium, equivalent weight of K(2)Cr(2)O(7) is e...

    Text Solution

    |

  9. Assertion :- In a redox reaction, the oxidation number of the oxidant ...

    Text Solution

    |

  10. STATEMENT-1 : H(2)SO(4) can not act as reducing agent. STATEMENT-2 :...

    Text Solution

    |

  11. Assertion :- In HClO(4), Chlorine has the oxidation number of +4. Re...

    Text Solution

    |

  12. Assertion :- Oxidation number of S in HSO(3)^(-) is +4. Reason :- Su...

    Text Solution

    |

  13. Assertion :- Oxidation number of Carbon in all it's compounds is +4. ...

    Text Solution

    |

  14. Assertion :- H(2) is the reducing agent and Cl(2) is reduced in the re...

    Text Solution

    |

  15. Assertion :- MnO(4)^(-) is always reduced to Mn^(+2). Reason :- Decr...

    Text Solution

    |

  16. Asserton :- KClO(3)rarrKClO(4)+KCl This is a disporportionation type...

    Text Solution

    |

  17. Assertion :- Oxidation number of Cr in CrO(3) is +6. Reason :- In Cr...

    Text Solution

    |

  18. Assertion :- Oxidation number of Cr in Cr(CO)(6) is zero. Reason :- ...

    Text Solution

    |

  19. Assertion :- Cr^(+2) is a reducing agent and Mn^(+3) is oxidising agen...

    Text Solution

    |

  20. Asserton :- The formal oxidation no. of sulphur in Na(2)S(4)O(6) is 2....

    Text Solution

    |