Which of the following facts regarding bond order is not valid?

Bond order is given by the number of bonds between the two atoms in a molecule

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With increase in bond order, bond enthalpy of the molecule decreases

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Isoelectronic molecules and ions have identical bond orders

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With increase in bond order, bond length decreases

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Solution

The correct option is B With increase in bond order, bond enthalpy of the molecule decreases
As $B O ↑↑, B E ↑↑$ as more is the $B O$ stronger is the bond, more stable is the compound and hence, bond enthalpy is increases.

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Similar questions

π

B_{2}

O_{2}, O_{2}^{+}, O_{2}^{-}

O_{2}^{2 -}

H_{2}^{-} = H_{2}^{+} > H_{2}

O_{2}^{+}, N O, N_{2}^{-}

2 \frac{1}{2}

N O_{3}^{-}

B O_{3}^{-}

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