Which of the following give a positive iodoform test with $\mathrm{I}{}_2$/$\mathrm{NaOH}$?

More questions on Distinguishing tests

• Which alcohol does NOT turn the orange chromic acid (CrO3 in aqueous H2SO4, Jones reagent) green within a few seconds? JEE Main level
• Which reagent distinguishes 2,4,6-trinitrophenol (picric acid) from phenol? JEE Main level
• Ceric ammonium nitrate, (NH4)2[Ce(NO3)6], gives a red colour with JEE Main level
• A compound X of formula C7H8O liberates H2 with sodium, is insoluble in aqueous NaOH, gives no colour with neutral FeCl3, and is oxidised by... JEE Advanced level
• P and Q are isomers of C4H10O. P gives turbidity immediately with Lucas reagent and a negative iodoform test. Q gives turbidity after about ... JEE Advanced level
• Phenol is converted into P by CHCl3/NaOH followed by H3O+ (major ortho product), and into Q by heating its sodium salt with CO2 at 4-7 atm a... JEE Advanced level