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What Are the Missing Reagents in the Reaction Sequence Shown

question 7

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What are the missing reagents in the reaction sequence shown here?
What are the missing reagents in the reaction sequence shown here?   A) 1. Na<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>, H<sub>2</sub>SO<sub>4</sub>, H<sub>2</sub>O 2. NH<sub>2</sub>OH , trace acid B) 1.  LiAlH<sub>4</sub> 2.  H<sub>2</sub>O  3.  NH<sub>2</sub>OH, trace acid C) 1.  NaBH<sub>4</sub>, MeOH 2.  NH<sub>3</sub> , then H<sub>3</sub>O<sup>+</sup> D) NH<sub>3</sub> , then  H<sub>3</sub>O+ E)  None of these


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