In which of the following, homolytic bond fission takes place?
Free radical chlorination of methane
Addition of HBr to double bond
Alkaline hydrolysis of ethyl chloride
Nitration of benzene
A petroleum fraction having boiling range 70-200°C and containing 6-10 carbon atoms per molecule is called :
natural gas
gas oil
gasoline
kerosene
The conditions for aromaticity is :
molecule must have clouds of delocalised electrons
molecule must contain (4n + 2) electrons
both (a) and (b)
None of the above
Allene (C3H4) contains :
one double bond, one triple bond and one single bond
one triple and two double bonds
two triple and one double bond
two double and four single bond
Which of the following is correct number of carbon atom present as the constituent of kerosene oil ?
C10 - C16
C4 - C6
C8 - C16
C12 - C18
Alkyl halides react with dialkyl copper reagents to give
alkenyl halides
alkanes
alkyl copper halides
alkenes
Amongst the following compounds, the optically active alkane having lowest molecular mass is
CH3-CH2-CH2-CH3
CH3-CH2-CH(CH3)-CH3
CH3-CH2-C≡CH
When acetylene is passed through dil H2SO4, in presence of HgSO4 the compound formed is
ether
acetaldehyde
acetic acid
ketone
B.
acetaldehyde
Dil H2SO4 in presence of HgSO4, cause addition of water ( according to Markownikoff's rule) to the unsaturated site.