19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following compounds can be best prepared by Wurtz-reaction?
X is heated with soda-lime and gives propane, X is
An alkyl halide X reacts with sodium to form 3,8- dimethyldecane. What is X? (a) (b) (c) (d)
1-bromo-3-chlorocyclobutane when treated with two equivalents of Na, in the presence of ether which of the following will be formed? (a) (b) (c) (d)
The compound with highest boiling point is
Which of the following has the lowest boiling point ?
The highest boiling point is expected for
When cyclohexane is poured on water, it floats, because
When a mixture of methane and oxygen is passed through heated molybdenum oxide, the main product formed is
On mixing alkane with chlorine and irradiating with ultraviolet light, it forms only one monochloroalkane. The alkane is
2-methyl butane on reacting with bromine in the presence of sunlight gives mainly
Eclipsed and the staggered conformations can be represented by
The repulsive interaction between the electron clouds, which affects stability of a conformation is termed as
The staggered form has the ...A... torsional strain and the eclipsed form has ...B... torsional strain. Here, A and B refer to
n-octane when heated to 773 K under a pressure of 10- 20 atm and in presence of a mixture of Cr O , V O and Mo O supported over Al O as catalyst, gives
Select the structure of the major product formed in the reaction (a) (b) (c) (d)
Br will abstract which of the hydrogen most readily.
and π bonds are obtained by ...A... and ...B... overlapping of orbitals. Here, A and B refer to
Strength of the double bond is ...A.,. than that of C—C single bond. Here, A refers to
But-1-ene and 2-methylprop-l-ene are the examples of
But-1-ene and but-2-ene are the examples of
Consider the following compounds, Choose the correct statement(s) regarding the above organic compounds.
The number of structural and configurational isomers of a bromo compound, C5H9Br, formed by the addition of HBr to 2-pentyne respectively, are
Which of the following is the major product when 1-butanol is heated with concentrated H2SO4?
Conc.H SO ->Major product: (a) (b) (c)