Question

How to prepare alcohol from- 1)ketone and hydrogen
2)Aldehyde and Hydrogen
Correct answer will be marked as brainliest

Answer 1

1. When ketone undergoes reduction 2°-alcohol is formed.

e.g., (CH3)2CO------ >(CH3)2CHOH
(acetone). 2°-alcohol(2-propanol)

2.when aldehyde undergoes reduction or treated with hydrogen 1°-alcohol is formed.

e.g.,CH3CHO------------------->CH3CH2OH
(Acetaldehyde). (1°-alcohol)(Ethanol)

Answer 2

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Preparing Aldehydes and Ketones

• Oxidation of 1o alcohols with PCC to form aldehydes.
• Hydration of an alkyne to form aldehydes.
• Reduction of an ester, acid chloride or nitrile to form aldehydes.
• Oxidation of 2o alcohols to form ketones.
• Hydration of an alkyne to form ketones.
• Friedel-Crafts acylation to form a ketone