MCQ
Ionisation of $H-$atom would produce
- Ahydride ion
- Bhydronium ion
- ✓proton
- Dhydroxyl ion
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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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