Organic Chemistry

Which of the following pairs of compounds belongs to the same homologous series

• C₃H₈ and C₃H₆

• C₄H₁₀ and C₅H₁₀

• C₂H₄ and C₄H₁₀

• C₂H₆ and C₄H₁₀

The type of isomerism shown by the cis and trans isomers is

• optical isomerism

• Geometrical isomerism

• functional isomerism

• positional isomerism

     How many isomers can be obtained from C₄H₁₀?

• 0

• 1

• 2

• 3

Consider the compound represented by the following formula: CH₃(CH₂)₃CH₃.

How many isomers does it have?

• 2

• 3

• 4

• 5

The molecular formula of a common organic laboratory anesthetic is

• CHI_³

• CCl₄

• CHCl₃

• CH₂Cl₂

Which of the following is produced when sodium propanoate reacts with soda-lime

• butane

• propane

• ethane

• methane

   Which of the following alkanes has the highest boiling point?

•     Pentane 

• Ethane

• Propane

• Hexane

    An organic compound contains 53.1% Carbon, 6.2% Hydrogen, 12.4% Nitrogen, and 28.3% Oxygen by mass. What is the molecular formula of the compound if its vapour density is 56.5?   [ C =12, H = 1, N = 14, O = 16].

• . C₅H₇NO₂

• C_⁵H₆NO₂

• . C_³H₆NO₂

• C₃H₇NO₂

    The empirical formula of an organic liquid hydrocarbon is XY. If the relative molar masses of X and Y are 72 and 6 respectively, it's vapour density is likely to be

• 33

• 66

• 39

• 78

The molecular formular of a hydrocarbon with an empirical formula of CH₃

  and a molar mass of 30 is

• D.

• C₃H₃

• C₂H₆

• C_⁶H₆