(B) All secondary alcohols do not give the iodoform test. Only those secondary alcohols which contain a methyl group attached to the carbon atom havin

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All secondary alcohols give iodoform reaction.

(B) All secondary alcohols do not give the iodoform test. Only those secondary alcohols which contain a methyl group attached to the carbon atom having the hydroxyl group $(CH_3-CH(OH)-R)$ give a positive iodoform test. For example,$3-pentanol$ $(CH_3-CH_2-CH(OH)-CH_2-CH_3)$ does not give this test.

Class 12 Chemistry 1 Aldehydes, Ketones and Carboxylic Acids: Aldehydes and Ketones Properties

Which of the following statements is wrong?

A
All carbonyl compounds of the general structure $CH_3-C(=O)-R$ give a positive iodoform test.
B
All secondary alcohols give iodoform reaction.
C
Alkanols of the structure $CH_3-CH(OH)-R$ (where $R = H,$ alkyl or aryl) give iodoform reaction.
D
The only aldehyde giving iodoform reaction is acetaldehyde.