EASY
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What are the products formed in a Cannizzaro reaction?

Important Questions on Aldehydes, Ketones and Carboxylic Acids

EASY
In the following reaction
Aldehyde+AlcoholHClAcetal
Aldehyde  Alcohol
HCHO t-BuOH
CH3CHO  MeOH
The best combination is:
HARD
The test performed on compound x and their inferences are:
 
Test Inference
a 2, 4 - DNP test Coloured precipitate yellow
b Iodoform test Yellow precipitate
c Azo-dye test No dye formation

Compound x is:

MEDIUM

The increasing order of the reactivity of the following with LiAlH4 is:

(A) Question Image

(B) Question Image

(C) Question Image

(D) Question Image

EASY
An organic compound 'X' having molecular formula C5H10O yields phenyl hydrazone and gives negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. 'X' could be:
EASY
The product formed by the reaction of an aldehyde with a primary amine is:
MEDIUM
Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?
EASY
Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:
HARD
In the reaction sequence

2CH3CHO OH- A  B ; the product B is:
HARD

After completion of the reactions (I and II), the organic compound(s) in the reaction mixtures is(are):

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HARD
Treatment of cyclopentanone  Question Image with methyl lithium gives which of the following species?
HARD
A compound of molecular formula C8H8O2 reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with concentrated NaOH forms benzyl alcohol as one of the products. The structure of the compound is:
MEDIUM
The major product B formed in the following reaction sequence is:

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