Hydrocarbons Te...

Direction (Q. Nos. 1 - 8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.

Q. Arrange the following compounds in increasing order of polarity

In principle, what is true regarding benzene and 1, 3, 5-cyclohexatriene?

Enthalpy of hydrogenation of cyclohexene is -119 kJ/mol and that of benzene is -208 kJ/mol. Based on these information, resonance energy of benzene can be calculated to be

Select the species which is not aromatic.

Consider the following bromides :

Which is not true regarding 1, 3, 5, 7-cyclooctatetraene?

The following compound , when treated with excess of AgBF₄ gives a red precipitate leaving a highly conducting filtrate, due to

When potassium metal is added to 1, 3, 5, 7-cyclooctatetraene, a highly conducting salt is formed without evolution of H₂ gas because

Direction (Q. Nos. 9 - 13) This section is based on Statement i and Statement II. Select the correct answer from the codes given below.

Q. 

Statement I : Benzene has very high stability than a general triene.

Statement II : Benzene is a completely conjugated system.

Statement I: Pyrene, although aromatic, decolorises brown colour of bromine water.

Statement II: It has one pi-bond extra which is not part of the aromatic system.

Statement I : The follow compound is optically active.

Statement II : It has a chiral carbon.

Statement I : Furan is an aromatic system, has resonance energy comparable to that of benzene.

Statement II : Furan decolourises the brown colour of bromine water solution.

Arrange the halogens F₂, Cl₂, Br₂, I₂ in order of their increasing reactivity with alkanes.