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The heat of formation of NO from its elements is $+ 90 k J m o l^{- 1}$ What is the approximate bond dissociation energy of the bond in NO? Consider $B E_{N = N} = 941 k J m o l^{- 1}$ and $B E_{O = O} = 499 k J m o l^{- 1}$
$630 k J m o l^{- 1}$
$1260 k J m o l^{- 1}$
$760 k J m o l^{- 1}$
$210 k J m o l^{- 1}$

760 k J m o l^{- 1}

630 k J m o l^{- 1}

1260 k J m o l^{- 1}

210 k J m o l^{- 1}

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