Q. The compound that will not give iodoform on treatment with alkali and iodine is

 2611  197 IIT JEEIIT JEE 1985Aldehydes Ketones and Carboxylic Acids Report Error

Solution:

Iodoform test is given by those compounds which has group and also those alcohols which produces the group on oxidation so here in this case acetone has group and ethanol on oxidation produces so it also has group but in diethyl ketone we have means we have ethyl group so that is why it cannot gives iodoform test.