CBSE
Cetane is a compound which has very good ignition property. Chemically it is
CH3(CH2)14CH3
(CH3)3C(CH2)11CH3
C17H34
None of the above
The test for unsaturation is confirmed by the decolourisation of which of the following ?
Iodine water
CusO4 solution
Bromine water
All of these
Which of the following is most reactive towards electrophilic nitration ?
Toluene
Benzene
Benzoic acid
Nitrobenzene
Which one of the following formulae does not represent an organic compound ?
C4H10O4
C4H6O4
C4H7ClO4
C4H9O4
The electrophile involved in the nitration of benzene is :
NO2
NO
NO
NO
The dehydration of butan-1-ol gives
1-butene as the main product
2-butene as the main product
equal amounts of 1-butene and 2-butene
2-methyl propene
C6H5NO2 C6H5X
'X' is identified as:
NO
-NH2
NHOH
None of these
In the compound the hybridisation of C-2 and C-3 carbons are respectively
sp3 and sp3
sp2 and sp3
sp2 and sp
sp3 and sp
The most suitable reagent for the following conversion, is :
H2, Pd/C, quinoline
Zn/HCl
Hg2+/H+, H2O
Na/liquid NH3
Catalyst used in dimerisation of acetylene to prepare chloroprene is
HgSO4 + H2SO4
Cu2Cl2
Cu2Cl2 + NH4Cl
Cu2Cl2 + NH4OH