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Which of the following is not correct re...

Which of the following is not correct regarding bond energies

A

The extent of overlap of the atomic orbitals decreases as the size of the atoms increase

B

Among the halogens the bond energy of `F_2` is abnormally high (159 KJ `mole^(-1)`)

C

The `F_2`, molecule it self has a notoriously weak bond 159KJ `mol^(-1 )`compared with chlorine 243 KJ `mol^(-1)`

D

According to mulliken in fluorine there are no-d-orbitals in the valence shell and hence `Ppi-dpi` bonding is not possible

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-REVISION EXERCISE -VIIA GROUP ELEMENTS
  1. Poor conductor of electricity is

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  2. Which of the following species has four lone pairs of electrons in its...

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  3. Which of the following is not correct regarding bond energies

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  4. Fluorine is a stronger oxidising agent than chlorine in aqueous soluti...

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  5. I) Fluorine reacts with cold , dilute alkalies liberating O(2) gas. ...

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  6. Easiest to perform in the following is

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  7. Most unstable among the following is

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  8. The Incorrect statement regarding Nelson cell process

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  9. NH(3)(excess)+3CltoA+N(2)uarr , the bonds present in compound A is

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  10. T' shaped interhalogen is

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  11. Which of the following is not correct regarding the interhalogen compo...

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  12. Correct trends from ClO^(-) to ClO4^- are A) Oxidation ability decr...

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  13. Br2+NaOHrarrNaBrO3+H2O In the above balanced chemical equation, number...

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  14. The aqeous solution of which of the following salt will have the lowes...

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  15. Charge distribution in iodine monochloride is best represented as

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  16. No gas is liberated when the following HX is treated with MnO(2)and co...

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  17. Gaseous HCl is a poor conductor of electricity while its aqueous solut...

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  18. Which of the following does not form precipitate with AgNO3 ?

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  19. Concentrated hydrochloric acid when kept in open air sometimes produce...

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  20. Which redical can bring about the highest oxidation state of a transit...

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