Test: Hydrocarbons(12 Sep) - JEE MCQ
15 Questions MCQ Test - Test: Hydrocarbons(12 Sep)
Given below are two statements.
Statement I: The presence of weaker 
-bonds make alkenes less stable than alkanes.
Statement II: The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: The presence of weaker
-bonds make alkenes less stable than alkanes.Statement II: The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.
-bond present in alkenes is weaker than 
-bond present in alkanes. This makes alkenes less stable than alkanes. Therefore, Statement I is correct.Benzene on nitration gives nitrobenzene in presence of HNO3 and H2SO4 mixture, where
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Complete combustion of 3 g of ethane gives x × 1022 molecules of water. The value of x is ______. (Round off to the nearest integer)
[Use: NA = 6.023 × 1023; Atomic masses in u: C: 12.0; O: 16.0; H: 1.0]
Methylation of 10 g of benzene gave 9.2 g of toluene. Calculate the percentage yield of toluene _________. (Nearest integer)
An unsaturated hydrocarbon X absorbs two hydrogen molecules on catalytic hydrogenation, and also gives the following reaction:
B(3-oxo-hexanedicarboxylic acid) X will be:
The major product obtained from the following reaction is
electron rule, it is non-aromatic due to its nonplanar nature. It is nonplanar due to repulsion of C-H bonds present inside the ring.In the following sequence of reactions, the maximum number of atoms present in molecule 'C' in one plane is __________. (In integer)
(A is the lowest molecular weight alkyne.)
The number of stereoisomers possible for 1,2-dimethyl cyclopropane is:
For the following sequence of reactions, the correct products are:
In the chemical reaction given below, A and B respectively are:
Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO4/H+ results in effervescence of a gas and gives ketone. The compound 'A' is:
Arrange the following conformational isomers of n-butane in order of their increasing potential energy:
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