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
Which of the following hydrocarbons is the most reactive towards addition of H2SO4?
Ethene
Propylene
3-methyl but-1-ene
1-butene
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
Find out the correct stereoisomeric product for the following reaction,
d-form
l- from
meso-form
racemic mixture
On warming with silver powder, chloroform is converted into
acetylene
hexachloroethane
1, 1, 2, 2-tetrachloroethane
ethylene
Hyperconjugation is most useful for stabilising which of the following carbocations?
Neo-pentyl
Tert-butyl
Iso-propyl
Ethyl
Dihedral angle between two methyl groups of n-butane in the gauche and anti forms are
60°, 0°
0°, 60°
60, 180°
180°, 60°
The homologue of ethyne is
C2H2
C2H6
C3H8
C3H4
D.
C3H4
Ethyne is nothing but C2H2, i.e., acetylene which can be represented by general molecular formula CnH2n-2· Only C3H4 tallies with the formula. Hence, C3H4 is the homologue of C2H2.