If an alkene of molecular formula C9H18 on ozonolysis gives 2,2-dimethyl propanal and 2-butanon, then the alkene is:
On the basis of product formation, it would be alkene:
The enol form of acetone after treatment with D2O gives:
The enol form of acetone on treatment with D2O undergoes enolization, deutration (addition of D2O), and dehydration (removal of H2O). The repeated enolization, deutration, and dehydration ultimately give .
Which of the following has the most acidic hydrogen?
2,4-Hexanedione (a 1,3-diketone) has the most acidic hydrogen. This is because the carbanion left after the removal of H+ is resonance stabilized in this case.
A compound containing only carbon, hydrogen, and oxygen has a molecular weight of 44. On complete oxidation, it is converted into a compound of molecular weight 60. The original compound is:
- an aldehyde
- an acid
- an alcohol
- an ether
On complete oxidation, the obtained compound shows increment in molecular weight of only 16. It means only one oxygen atom is added here. This condition is fulfilled by only aldehyde which on oxidation gives acid.
Hence, the original compound must be
A compound has a vapor density of 29. On warming an aqueous solution of alkali, it gives a yellow precipitate. The compound is:
Molecular weight of the compound
Molecular weight of , and are 58, 60, 58, and 74, respectively. Both and have molecular weight 58, but only aldehyde, i.e., on warming with aqueous alkali gives yellow precipitate.