A ketone A forms iodoform when it reacts with I 2- N aOH - A on reduction with NaBH 4 gives B which on heating with H 2 SO 4 gives C- C on reductive ozonolysis gives acetaldehyde and acetone-A- B gives a positive iodoform testB- A gives a red color with sodium nitroprussideC- A when treated with Caro-s acid- gives isopropyl acetateD- C on reaction with aqueous HCl will give 2-methylbutan-2-ol

1381

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Byju's Answer

Standard XII

Chemistry

Reductions Involving Aldehydes or Ketones

A ketone A fo...

Question

A ketone (A) forms iodoform when it reacts with $I_{2} + N a O H$ . (A) on reduction with $N a B H_{4}$ gives (B) which on heating with $H_{2} S O_{4}$ gives (C). (C) on reductive ozonolysis gives acetaldehyde and acetone.

(B) gives a positive iodoform test

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(A) gives a red color with sodium nitroprusside

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(A) when treated with Caro’s acid, gives isopropyl acetate

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H C l

will give 2-methylbutan-2-ol

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Solution

The correct options are
A (B) gives a positive iodoform test
B (A) gives a red color with sodium nitroprusside
C (A) when treated with Caro’s acid, gives isopropyl acetate
D (C) on reaction with aqueous $H C l$ will give 2-methylbutan-2-ol

(a) (B) gives positive iodoform test.

(b) Methyl ketones give a red colour with sodium nitroprusside.

(c)

(d)

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A ketone (A) forms iodoform when it reacts with I2+NaOH. (A) on reduction with NaBH4 gives (B) which on heating with H2SO4 gives (C). (C) on reductive ozonolysis gives acetaldehyde and acetone.

A ketone (A) forms iodoform when it reacts with $I_{2} + N a O H$ . (A) on reduction with $N a B H_{4}$ gives (B) which on heating with $H_{2} S O_{4}$ gives (C). (C) on reductive ozonolysis gives acetaldehyde and acetone.