Problem: Step 1: treatment with NaBH4Add curved arrows for the first step, Treat Na+ as a spectator ion. Step 2: treatment with D2ODDNaONAdd curved arrows for the second step. Do not show Na+ counter ion.Final productsDraw the products of the last step (hint: one organic and one inorganic species),  including all nonbonding electron pairs.

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NaBH4 → reduce carbonyl (C=O) into alcohol

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Problem Details

Step 1: treatment with NaBH4

Add curved arrows for the first step, Treat Na+ as a spectator ion. 

Step 2: treatment with D2ODDNaON

Add curved arrows for the second step. Do not show Nacounter ion.

Final products

Draw the products of the last step (hint: one organic and one inorganic species),  including all nonbonding electron pairs.