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  • Help me answer: - d and f Block Elements - NEET

When copper is heated with conc. HNO_{3} it produces

  • Option 1)

    Cu(NO_{3})_{2} and NO_{2}

  • Option 2)

    Cu (NO_{3})_{2} and NO

  • Option 3)

    Cu(NO_{3})_{2}, NO and NO_{2}

  • Option 4)

    Cu(NO_{3})_{2} and N_{2}O

 

Answers (1)

 

Oxidation states -

Transition elements have a variety of oxidation states but the common oxidation state is +2 for 3d metals.

 

-

 

The reoc is as follows:

Cu+4HNO_{3}\left ( conc. \right )\rightarrow Cu\left ( NO_{3} \right )_{2}+2NO_{2}+2H_{2}O

Here;    HNO_{3}  acts as an oxidizing agent.


Option 1)

Cu(NO_{3})_{2} and NO_{2}

Correct

Option 2)

Cu (NO_{3})_{2} and NO

Incorrect

Option 3)

Cu(NO_{3})_{2}, NO and NO_{2}

Incorrect

Option 4)

Cu(NO_{3})_{2} and N_{2}O

Incorrect

Posted by

Vakul

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