Multiple Choice

Which of the following compound(s), on being warmed with iodine solution and $$NaOH$$ gives iodoform test?

A$$CH_3CH_2OH$$
Correct Answer
B$$CH_3COCH_3$$
Correct Answer
C$$CH_3-CH(OH)-CH_3$$
Correct Answer
D$$CH_3OH$$

Solution

Haloform reaction is shown by primary alcohol $${ C }_{ 2 }{ H }_{ 5 }OH$$ which on partial oxidation gives $$C{ H }_{ 3 }-CHO$$.
Secondary alcohols with methyl group $$\left( C{ H }_{ 3 }-CHOH-C{ H }_{ 3 } \right) $$ on oxidation which give methyl ketonic groups show positive result for haloform test. Methyl ketonic compounds show positive result.

Thus, (i), (ii), (iii) give positive result for iodoform test.

SIMILAR QUESTIONS

Haloalkanes and Haloarenes

Which of the following compounds will give a yellow precipitate with iodine and alkali?

Haloalkanes and Haloarenes

The correct statement with respect to product Y is:

Haloalkanes and Haloarenes

Following compounds are given (i) $$CH_{3}CH_{2}OH$$ (ii) $$CH_{3}COCH_{3}$$ (iii) $$CH_{3} - \underset {\underset {CH_{3}}{|}}{C}HOH$$ (iv) $$CH_{3}OH$$ Which of the above compound(s) on being warmed with iodine solution and $$NaOH$$, will give iodoform?

Haloalkanes and Haloarenes

Which of the following compounds will give positive iodoform test ?

Haloalkanes and Haloarenes

Which of the following alcohols is expected to give haloform test?

Haloalkanes and Haloarenes

Give a chemical test to distinguish between the following pairs of compounds.

Haloalkanes and Haloarenes

Give a chemical test to distinguish between the following pairs of compounds.

Haloalkanes and Haloarenes

Distinguish between: Propanol and t-butyl alcohol

Haloalkanes and Haloarenes

Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

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