MCQ
Product $(B)$ is


- A

- B$CH_3-O-CH_2-CH_2-CH_3$
- ✓$H_2C = CH-CH_2 - O - CH_3$
- D





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$PhCHO + Ph \cdot CHO \xrightarrow[in\,\,{{D}_{2}}O]{NaOD} A + \begin{matrix} O \\ || \\ Ph-C-{{O}^{-}} \\ \end{matrix}$$\left( Ph\right.$ is $\left.- C _{6} H _{5}\right)$

The number of carbon atoms present in the product $B$ is $.....$