Test to Distinguish Between Aldehydes and Ketones

Product (P) is

Which compounds among the following give positive iodoform test?

Oxidation of butan-2-one to propionic acid can be achieved by

Which is the major product formed when acetone is heated with iodine and potassium hydroxide?

Glucose on reaction with Fehling solution gives

An organic compound $\mathrm{X}$ with molecular formula ${\mathrm{C}}_{11}{\mathrm{H}}_{14}$ gives an optically active compound on hydrogenation. Upon ozonolysis, $\mathrm{X}$ produces a mixture of compounds $-\mathrm{P}$ and $\mathrm{Q}.$ Compound $\mathrm{P}$ gives a yellow precipitate when treated with ${\mathrm{I}}_2$ and $\mathrm{NaOH}$ but does not reduce Tollen's reagent. Compound $\mathrm{Q}$ does not give any yellow precipitate with ${\mathrm{I}}_2$ and $\mathrm{NaOH}$ but gives Fehling's test. The compound $\mathrm{X}$ is:

The major products of the following reaction.

 are

A mixture of acetaldehyde and acetophenone can be separated by using___________

Which of the following react with ${\mathrm{NaHSO}}_3$ and form precipitate.

For next two question please follow the same

Five isomeric p-substituted aromatic compound (A) to (E) with molecular formula C₈H₈O₂ are given for identification. Based on the following observation, give the structures of the compounds.

i. Both (A) and (B) form a silver mirror with Tollen's reagent. (B) also gives a positive test with neutral FeCl₃ solution.

ii. (C) gives positive iodoform test.

iii. (D) is readily extracted in aqueous NaHCO₃ solution.

iv. (E) on acid hydrolysis gives 1, 4-dihydroxybenzene. 

Compound (B) is :

When ethanal is heated with Fehling's solution, then the precipitate obtained is of:

The compound $X$  is tested by following tests and their result are:
 

Among the following compounds, which can give black shiny surface and little bit smell of ammonia when treated with silver diammine complex in basic medium?

Select the compound which will give a positive iodoform test.

What are the end products A and B of the following sequence of reaction?

On treatment with I₂ and NaOH, An aromatic compound $\mathrm{T}\left({\mathrm{C}}_{10}{\mathrm{H}}_{10}{\mathrm{O}}_2\right)$ give 2 moles of ${\mathrm{CHI}}_3$ and compound $\mathrm{U}\mathrm{ }\left({\mathrm{C}}_8{\mathrm{H}}_4{\mathrm{O}}_4{\mathrm{Na}}_2\right)$. After the acidification, compound U gives 2 mononitro products on nitration. Compound (T) can also be obtained by the process of ozonolysis of V, in this ozonolysis 1 mole of $\mathrm{OHC}\mathrm{ }–\mathrm{ }\mathrm{CHO}$ is obtained along with (T). Which of the following statement is not correct?

Positive iodoform test will not be given by: