CBSE
The above reaction is known as
aromatisation
pyrolysis
isomerisation
oxidation
Hyperconjugation is most useful for stabilising which of the following carbocations?
Neo-pentyl
Tert-butyl
Iso-propyl
Ethyl
Propyne on passing through red hot copper tube forms
benzene
toluene
mesitylene
None of these
The IUPAC name of the compound is
pent - 4 yn - 2- ene
pent - 3-en - 1-yne
pent - 2- en-4 -yne
pent - 2- en-4 -yne
In the reaction,
How many electron donating groups are attached with the carbon atom of unsaturated part of the product 'B' ?
Two
Three
Four
None of these
Which of the following hydrocarbons is the most reactive towards addition of H2SO4?
Ethene
Propylene
3-methyl but-1-ene
1-butene
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is
The eclipsed conformation of ethane is more stable than staggered conformation because eclipsed conformation has no torsional strain
The eclipsed conformation of ethane is more stable than staggered conformation even though the eclipsed conformation has torsional strain
The staggered conformation of ethane is more stable than eclipsed conformation because staggered conformation has no torsional strain
The staggered conformation of ethane is more stable than eclipsed conformation because staggered conformation has no torsional strain
On warming with silver powder, chloroform is converted into
acetylene
hexachloroethane
1, 1, 2, 2-tetrachloroethane
ethylene
Dihedral angle between two methyl groups of n-butane in the gauche and anti forms are
60°, 0°
0°, 60°
60, 180°
180°, 60°
Find out the correct stereoisomeric product for the following reaction,
d-form
l- from
meso-form
racemic mixture