One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is
propene
1-butene
2-butene
ethene
The oxide that gives H2O2 on treatment with dilute acid is
PbO2
Na2O2
MnO2
TiO2
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane. This alkane could be
propane
pentane
iso-pentane
neo-pentane
Of the five isomeric bexanes, the isomer which can give two monochlorinated compounds is
2-methylpentane
2, 2-dimethylbutane
2, 3-dimethylbutane
n-hexane
The electrophile E+ attacks the benzene ring to generate the intermediate σ-complex. Of the following, which σ-complex is of lowest energy?
Which one is used as propellants for rockets?
Liq.H2 + Liq.O2
Liq.N2 + Liq.O2
Liq.H2 + Liq.N2
Liq.O2 + Liq.air
Petrol for aviation purposes must contain
Straight chain hydrocarbons
Aromatic hydrocarbons
Olefinic hydrocarbons
Highly branched chain paraffins
A hydrocarbon 'A' on ozonolysis gives two isomeric form 'B' and 'C'. B on oxidation gives 'D'. Silver salt of D contains 59.6% Ag. Structure of hydrocarbon is
Which of the following has the minimum boiling point?
n-butane
1-butyne
Iso-butene
Trans 2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces
4-phenylcyclopentene
2- phenylcyclopentene
1 - phenylcyclopentene
3-phenylcyclopentene