The IUPAC name of the compound is
pent-4-yn-2-ene
pent-3-en-1-yne
pent-2-en-4-yne
pent-1-yn-3-ene
Consider the reactions,
The mechanisms of reactions (i) and (ii) are respectively
SN 1 and SN2
SN 1 and SN1
SN 2 and SN 2
SN 2 and SN1
In which of the below reaction do we find unsaturated carbonyl compounds undergoing a ring closure reaction with conjugated dienes?
Perkin reaction
Diels-Alder reaction
Claisen rearrangement
Hofmann reaction
Consider the following carbocations,
The correct sequence of the stability of these is
II < I < III < IV
II < III < I < IV
III < I < II < IV
IV < III < I < II
2 2-dichloro propane on hydrolysis yields
acetone
2, 2-propane diol
isopropyl alcohol
acetaldehyde
For synthesis of 1-butene, CH3MgI should be treated with
propene
2-chloropropene
allyl chloride
ethyl chloride
Ethylidene dichloride is obtained by the reaction of excess of HCl with
ethylene
acetylene
propene
methane
Hardening of oil is done by
dehydrogenation
hydrogenation
dehydrohalogenation
dehydration
B.
hydrogenation
Hardening of oil is done by hydrogenation.