MCQ
$1{s^2}2{s^2}2{p^6}3{s^1}$ shows configuration of
- A$A{l^{3 + }}$ in ground state
- B$Ne$ in excited state
- ✓$M{g^ + }$ in excited state
- DNone of these
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Assertion $A:$ $3.1500\,g$ of hydrated oxalic acid dissolved in water to make $250.0\,mL$ solution will result in $0.1\,M$ oxalic acid solution.
Reason $R:$ Molar mass of hydrated oxalic acid is $126\,g\,mol ^{-1}$.
In the light of the above statements, chose the correct answer from the options given below:
