MCQ
Enthalpy of a compound is equal to its
- AHeat of combustion
- BHeat of formation
- ✓Heat of reaction
- DHeat of solution
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$2\left[ Au ( CN )_2\right]_{( aq )}^{-}+ Zn ( s ) \rightarrow 2 Au ( s )+\left[ Zn ( CN )_4\right]_{( aq )}^{2-}$
$A.$ Redox reaction
$B.$ Displacement reaction
$C.$ Decomposition reaction
$D.$ Combination reaction
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