MEDIUM
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Explain the mechanism of ozonolysis of alkenes.

Important Questions on Hydrocarbons

HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
A single compound of the structure

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is obtainable from ozonolysis of which of the following cyclic compounds?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes

The product of which of the following reactions forms a reddish brown precipitate when subjected to Fehling's test? 

MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
The compound which on ozonolysis produces a mixture of propanone and ethanal is;
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
An olefin is treated with ozone and then with zinc and water. The products obtained are Ethanal and propanone. The olefin will be
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
In the following reactions, the product S is


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EASY
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
Which of the following compound, on ozonolysis, gives an aldehyde and a ketone?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
An alkene gives two moles of HCHO, one mole of CO2 and one mole of CH3COCHO on ozonolysis. What is its structure ?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
Olefin A gives 2 moles acetone and one mole glyoxal on ozonolysis. The structure of A. 
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes

Compound P and R upon ozonolysis produce Q and S, respectively. The molecular formula of Q and S is C8H8O . Q undergoes Cannizzaro reaction but not haloform reaction, whereas S undergoes haloform reaction but not Cannizzaro reaction.

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MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
An unsaturated hydrocarbon X absorbs two hydrogen molecules on catalytic hydrogenation, and also gives following reaction:
X→iiZnH2OiO3A→AgNH32+B  (3-oxo-hexanedicarboxylic acid) X will be:
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
An organic compound 'A' C4H8on treatment with KMnO4/H+ yields compound 'B' C3H6O. Compound 'A' also yields compound 'B' an ozonolysis. Compound 'A' is :
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
The major product formed when 2-butene is reacted with O3 followed treatment with Zn/H2O  is
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes

Identify the major product in the following reaction

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HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammoniacal silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon X is :
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes

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A is 

HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
The reaction sequence(s) that would lead to o-xylene as the major product is(are)
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
The reaction of an alkene X with bromine produces a compound Y, Which has 22.22%C, 3.71%H, 74.07%Br. The ozonolysis of alkene X gives only one product. The alkene X is [Given : atomic mass of C=12; H=1; Br=80]
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
The products obtained by the ozonolysis of 2 -methylbut- 1 -ene are
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes

In the following reaction-

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The major product X is-

HARD
Chemistry>Organic Chemistry>Hydrocarbons>Alkenes
Which compound would give 5-keto-2-methyl hexanal upon ozonolysis?