What is produced when butanal is oxidized

Draw: 3-ethyl -2-hexanol https://jspaint.app/#local:9f1d8491696e6  

Ranks these chemicals in order of level of oxidation 1 being most and 4 being least

Complete the oxidation reaction for the following alcohol:

Or if you want to type about it… What is the major product of the dehydration of these alcohols?   CH3CH2OH + HOCH2CH3 ——–

What is the product of this reaction?   

Or if you want to type about it… What is the major product of the dehydration of these alcohols?   CH3CH2OH + HOCH2CH3 ——–

What is the product of this reaction?   

or the typed option… Draw 3-choro-2-pentanone

What is the predicted rating for U3 on item I2 (P3,2), using the Pearson correlation? (round up to 3 decimal digits)