In the given reaction, \[ \mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{H}(g) ; \Delta H=435.0 \ma...

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In the given reaction,
\[
\mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{H}(g) ; \Delta H=435.0 \mathrm{~kJ} \mathrm{~mol}^{-1}
\]
The enthalpy change is known as
(a) enthalpy of formation
(b) enthalpy of atomisation
(c) bond dissociation enthalpy
(d) Both (b) and (c)
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