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Which of the following species is parama...

Which of the following species is paramagnetic :

A

1. `O_(2)^(-)`

B

2. `CN^(-)`

C

3. CO

D

4. `O_(2)^(2-)`

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The correct Answer is:
A
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MODERN PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -Multiple Choice Questions (Level - II)
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  4. Which of the following species is paramagnetic ?

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  5. The bond order in O(2)^(+) is same as in

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  6. The bond order in N(2)^(+), O(2) and F(2) follows the order :

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  7. The bond lengths in O(2), O(2)^(+) and O(2)^(-) species follow the ord...

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  8. The hybridisation of carbon atoms in C-C single bond in HC-= C-CH=CH(2...

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  9. Which of the following has a bond formed by the overlap of sp-sp^(3) h...

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  10. The type of hybrid orbitals used by the chlorine atom in ClO(2)^(-) io...

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  17. The number of sigma and pi bonds in tetra - cyanoethene are :

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  18. Layers of carbon atoms in graphite are held together by :

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  19. H(2)O is a liquid while H(2)S is a gas. This is due to :

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  20. Types of bonding in solid carbon dioxide are :

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