Which is not heterocyclic compound _______________?
Which is not heterocyclic compound _______________? A. Furan B. ThiopheneC. Aniline D. Pyridine
Which is not heterocyclic compound _______________? A. Furan B. ThiopheneC. Aniline D. Pyridine
the fractional distillation of petroleum produces gasoline up to ________________? A. 10% B. 15%C. 20% D. 30%
In cyano group the carbon atom shows which kind of hybridization___________________? A. sp2B. sp C. sp3 D. none of the above
In sp3 hybridization the expected geometry of molecules will be__________________? A. square planar B. trigonal pyramidalC. tetrahedral D. linear
2-propanol and 1-propanol show the isomerism________________? A. metamerism B. functional group isomerism C. geometric isomerismD. position isomerism
A single atom or group of atoms which gives characteristic properties to a compound is called_________________? A. radical B. hydrocarbonC. functional group D. ion
Which one of the following compounds shows intense knocking ? A. n-pentane B. iso-heptane C. iso-octaneD. n-heptane
At low temperature and pressure cracking can be done in presence of catalyst________________? A. Al2O3 B. Fe2O3C. Al2O3 and SiO2 D. Fe2O3 and SiO2
Crude oil is blackish coloured liquid produced after the decay of organic matter present between_________________? A. earth layer B. mountainsC. sedimentary rocks D. rocks
Coal is produced after a long time decay of_________________? A. animals B. fossilsC. wood D. all of the above