In the above sequence Y can be
3-nitrochlorobenzene
1-nitrochlorobenzene
4-nitrochlorobenzene
none of these
A.
3-nitrochlorobenzene
(HNO3 + H2SO4) will generate (nitronium ion) which will give nitrobenzene, as - NO2 is deactivating and meta directing so, product formed will be 3-nitrochlorobenzene.
The reagent used in Gatterman Koch aldehyde synthesis is :
Pb/BaSO4
alkaline KMnO4
acidic KMnO4
CO + HCl
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