Answer:
Ketone.
Explanation:
Alkynes experience additions of water catalyzed by acids, across the triple bond in the presence of <u>mercuric ion as a catalyst</u>. Generally, a mixture of mercuric sulfate and aqueous sulfuric acid is used.
Under acidic conditions, mercury is replaced by hydrogen to form a vinyl alcohol, called enol.
<u>Enoles tend to be unstable</u> and isomerize in ketones. This quick equilibrium is known as the keto-enol tautomerism.
Should be B, because one rotation is a day one revolution is a day(also to check I looked up the difference).
The valence electrons are easily delocalized, I believe
Answer:H2 + F2 → 2HF
Hydrogen react with fluorine to produce hydrogen fluoride.