MCQ
Product $(A)$ is


- A

- B

- ✓

- D








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Assertion $(A):$ The ionic radii of $O ^{2-}$ and $Mg ^{2+}$ are same.
Reason $( R )$ : Both $O ^{2-}$ and $Mg ^{2+}$ are isoelectronic species.
In the light of the above statements, choose the correct answer from the options given below
$\text { Given : pKa }\left( CH _3 COOH \right)=4.76$
$\log 2=0.30$
$\log 3=0.48$

Give the structural formula of compound $(B)$