Stephanie has been doing research on how petroleum is formed. She says that oxygen must be present while the tiny plants and ani
2 answers:
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I can't see the pictures clearly but maybe this will help
Answer:
C. Butanal , is the aldehyde
Explanation:
A . It is carboxylic acid : ---COOH group
B. It is Ester : ----COOR group , Here R = CH3
C. It is Aldehyde : -----CHO group
D. It is ketone : ----C=O group
See image :
