Aldehydes, Keto...

Only One Option Correct Type

Direction (Q. Nos. 1-14) This section contains 14 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. 

In hexane-2,4-dione, how many different mono-enols are possible?

What is the correct order of equilibrium enol content of the following compounds?

I. CH₃COCH₃
II. CH₃COCH₂COOC₂H₅
III. CH₃COCH₂COCH₃
IV. CH₃COCH₂COH

In which of the following compounds, enol form exist? 

Among the following compounds, one that will not show keto-enol tautomerism is

Arrange the following in the increasing order of hydrate content at equilibrium in aqueous solution

I. H₂CO

III. C₆H₅CHO

For which of the following equilibrium, K_c < 1 ?

Arrange the following in the increasing order of stability of their most stable enol.

Which of the following observation does not establish the existence of keto-enol tautomerism in acetone?

Hemiacetals are usually unstable whereas acetals are stable. Which has the most stable hemiacetal?

Which form s most stable acetal in the given condition? 

Consider the following reaction,

Q.

The appropriatensequence of reagent that can best bring about the above conversion is

What is the major product in the following reaction?

Which of the following has greater enol content than keto counter part?

Arrange the following in the increasing order of acidic strength 

I. H₂CO
II. CH₃CHO
III. C₆H₅CH₂CHO