NEET levelSingle correct optionDifficulty 1 of 3g3263
Count the alpha hydrogens in the compound shown (hydrogens on carbons directly bonded to the carbonyl carbon). How many are there?
A2
B3
C5
D6
Answer: C
The compound shown is butan-2-one. The carbonyl carbon is bonded to a CH3 group (3 H) and to a CH2 group (2 H). The total number of alpha hydrogens is 3+2=5.