Question

How many of the following pairs can be distinguished by Tollens test and Iodoform test?

Answer 1

Pair (I) Distinguished by Tollens test but not by Iodoform test because both contain $C{H}_3$ group, hence gives Iodoform test by both.
Pair (II) Distinguished by both Tollens test and Iodoform tests.
Pair (III) Can not distinguish by Iodoform and tollens tests.
Pair (IV) Also distinguished by both tests.
Tollens test given by only aldehydes Iodoform test given by alcohol and aldehyde or ketone containing $C{H}_3$ group.