Aromatic properties of benzene are proved by

• aromatic sextet theory

• resonance theory

• molecular orbital theory

• All of the above

Marsh gas primarily contains

• C₂H₂

• CH₄

• H₂S

• CO

Benzene hexachloride is used as

• dye

• antimalarial drug

• antibiotic

• insecticide

The correct order of stability of following carbocation is

• (III) > (II) > (I) > (IV)

• (II) > (III) > (I) > (IV)

• (I) > (II) > (III) > (IV)

• None of the above

115.

CO₂ gas obtained by the combustion of 12 mL butane gas is

• 3 mL

• 12 mL

• 24 mL

• 48 mL

LPG is a mixture of

• C₆H₁₂ + C₆H₆

• C₄H₁₀ + C₃H₈

• C₂H₄ + C₂H₂

• C₂H₄ + CH₄

Alkene which on ozonolysis yields acetone, is

• CH₂=CH-CH₂-CH₃

• CH₃-CH=CH₂

• CH₃-CH=CH-CH₃

• (CH₃)₂-C=C-(CH₃)₂

In chlorination benzene, the reactive species is

• Cl⁺

• Cl^-

• Cl₂

• Cl₂^-

The number of moles of proton which can be easily given by butyne-1 (1 mole) is

• 1

• 2

• 3

• 6

The addition of HBr is easiest with

• CH₂=CHCl

• ClCH=CHCl

• CH₃-CH=CH₂

• (CH₃)₂C=CH₂