CH₃CH₂CH₃ $\stackrel{400-600°\mathrm{C}}{\to }$ X + Y

X and Y are

• hydrogen

• methane

• hydrogen

• ethylene

How many $\mathrm{\pi }$ bonds are present in naphthalene?

• 4

• 5

• 6

• 7

Ammoniacal silver nitrate form a white precipitate easily with

• CH₃C≡CH

• CH₃C≡C-CH₃

• CH₃CH=CH₂

• CH₂=CH₂

Which of the following compounds would have the highest boiling point ?

• CH₃CH₂CH₂CH₃

• CH₃NH₂

• CH₃OH

• CH₂F₂

195.

The quality of diesel is expressed by

• octane number

• cetane number

• antiknock compound

• presence of additives

An alkene having molecular formula, C₆H₁₀ gives  OHC(CH₂)₄CHO, on ozonolysis. The alkene is

• hexene-1

• hexene-2

• cyclohexene

• 1-methylcyclohexene-1

When petroleum is heated gradually, the first batch of vapours evolved will be rich in

• kerosene oil

• diesel oil

• lubricating oil

• petroleum ether

The correct name for the following hydrocarbon is

• tricycle [4.1.0] heptane

• bicyclo [5.2.1] heptane

• bicyclo [4.1.0] heptane

• bicyclo [4.1.0] hexane

The number of isomeric alkanes having the molecular formula C₅H₁₂ is

• Three

• Five

• nine

• Thirty two

Which organic compound is an electrolyte ?

• CH₃Cl

• HCOOH

• CH₃OH

• C₆H₁₂O₆