Hydrocarbons

Neutral divalent carbon species released as reaction intermediate in reaction of ethylene is

Which of the following will not show resonance

Two chemicals having same chemical formula but different arrangement of atoms are called

Which of the following is an alicyclic compound

Gobar gas contains

Which of the following yield both alkane and alkene

‘The addition of unsymmetrical reagents to unsymmetrical alkenes occurs in such a way that the negative part of the addendum goes to that carbon atom of the double bond which carries lesser number of hydrogen atoms” is called by

Octane number can be changed by

Among the given compounds, one which can be distinguished by AgNO₃ is

Toluene can be oxidised to benzoic acid by

Rate determining step in nitration of benzene is

Which of the following is a chiral compound

The dipole moment is the highest for

Which of the following gives propyne on hydrolysis

The reactive species in the nitration of benzene is

Which of the following has zero dipole moment

Electrophile in the case of chlorination of benzene in the presence of FeCl₃ is

The cylindrical shape of an alkyne is due to

The most stable conformation of n-butane is

In Friedel-Craft’s alkylation, besides AlCl₃ the other reactants are

Dihedral angle in staggered form of ethane is

Geometrical isomers differ in

Reaction of HBr with propene in the presence of peroxide gives

Which one of the following pairs represents stereoisomerism

Liquid hydrocarbons are can be converted to a mixture of gaseous hydrocarbons by

Which one of the following reagents will be able to distinguish between 1-butyne and 2-butyne

In which of the following resonance will be possible

Ethyne can be oxidised to oxalic acid by using

What is the composition of tear gas

Which of the following acids exhibits optical activity

Enantiomers

Electrolysis of aqueous solution of potassium fumarate or potassium maleate can yield the following mixture

Which of the following possible isomers of butanol has a chiral centre

The four bonds in methane are directed in space with an angle of

Heating a mixture of sodium benzoate and soda lime gives

By which one of the following compounds both CH₄ and CH₃ – CH₃ can be prepared in one step

At room temperature the eclipsed and staggered forms of ethane can not be isolated because

The preparation of ethene from ethanol can be described as

In the presence of Lewis acid toluene reacts with chlorine to give

Calcium carbide on reaction with water yields

The compound which contains all the four 1°,2°,3° and 4° carbon atoms is

Which one among the following is most reactive towards electrophilic substitution reaction

Which one of the following is a non-benzenoid aromatic compound

The most common type of reaction in aromatic compounds is

The electrophile in the nitration of benzene is

Which of the following group activates the benzene ring most towards electrophilic substitution

The reaction CH₃ – Br + 2Na + Br – CH₃ → CH₃ – CH₃ is called

Which of the following gives methane on hydrolysis

The number of π-bond present in propyne is

Acetylene, on reacting with formaldehyde under high pressure, gives