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Compound A, C5H8, racts with hydrogen in the presence of Pd to yield a saturated hydorcarbon, B, C5H10. Compound A, on treatment with ozone followed by treatment of the ozonide with Zn/H2O yields a dialdehyde C, C5H8O2, Dialdehyde C on treatment with hydrazine and concentrated potassium hydorxide at elevated temperature gives 2-methylbutane. The structure of A is

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Important Questions on Unsaturated Hydrocarbons- Alkenes

MEDIUM
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is
EASY
Upon heating with acidic KMnO4 an organic compounds produces hexane-1,6-dioic acid as the major product the starting compound is
MEDIUM
The correct structure of the product A formed in the reaction is

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EASY
2, 3-Dimentylbut-2-ene when reacted with bromine forms a compound which upon heating with alcoholic KOH produce the following major product.
MEDIUM
Given,

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The enthalpy of hydrogenation of these compounds will be in the order as:
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A single compound of the structure

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is obtainable from ozonolysis of which of the following cyclic compounds?
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The major product of the following reaction is:
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EASY
In the reaction with HCl, an alkene reacts following the Markovnikov's rule to give the product 1-chloro-1-methylcyclohexane. The possible reaction of the alkene is
EASY
The major product of the reaction of 2 - butene with alkaline KMnO4 solution is:
MEDIUM
Reaction of ethanol with conc. sulphuric acid at 170 oC produces a gas which is then treated with bromine in carbon tetrachloride. The major product obtained in this reaction is
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What is the major product expected from the following reaction?

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Where D is an isotope of hydrogen.

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Which compound would give 5-keto-2-methyl hexanal upon ozonolysis?