how-many-of-the-following-systematic-names-are-correct-correct-those-that-are-mi

Question

How many of the following systematic names are correct? Correct those that are misnamed.
(i) 4-propylpent-2-yne
(ii) 2-chlorohept-4-yne

Accepted Answer

None is correct.
Correct name for (i): 4-methylhept-2-yne.
Correct name for (ii): 6-chlorohept-3-yne.

Answer

1 name is correct.
Correct name for (i): 4-methylhept-3-yne.

Answer

1 name is correct.
Correct name for (ii): 5-chlorohept-4-yne.

Answer

None is correct.
Correct name for (i): 4-methylhept-3-yne.
Correct name for (ii): 5-chlorohept-4-yne.