harry2133 harry2133 23-11-2022 Chemistry contestada How would you prepare pentanal from the following starting materials?(a) CH₃CH₂CH₂CH₂CH₂OH b) CH₃CH₂CH₂CH₂CH=CH₂ (c) CH₃CH₂CH₂CH₂CO₂CH₃ (d) CH₃CH₂CH₂CH=CH₂