MCQ
Olefins can be hydrogenated by
- AZinc and $HCl$
- BNascent hydrogen
- ✓Raney $Ni$ and ${H_2}$
- DLithium hydride in ether
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$Ag_2CO_{3(s)} \rightleftharpoons 2Ag^+_{(aq)} + CO^{2-}_{3(s)}$
in water at $25\, ^o C$ is $(R = 8.314\, J\, K^{-1}\,mol^{-1})$