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The reagent that can be used to distinguish ethene and ethyne is

• ammoniacal silver trioxonitrate(V) solution

• Benedict solution

• bromine water

• Fehling's solution

When bromine is added to ethene at room temperature, the compound formed is

• 1, 1 - dibromoethane

• 1, 1 - dibromoethene

• 1, 2 - dibromoethane

• 1, 2 - dibromoethene

Which of the following compounds determines the octane -rating of petrol?

• 1, 2, 3 - trimethlypentane

• 2, 3, 5 - trimethyloctane

• 2, 3, 5 - trimethylpentane

• 2, 2, 4 - trimethylpentane

A compound contains 7.75% hydrogen 37.21% carbon and 55.04% chlorine, Determine the empirical formula of the compound. (H = 1,C =12, Cl = 35.5)

• C₃H₃Cl

• C₂H₅Cl

• C₃H₈Cl

• C₅H₂Cl

Consider the following reaction equation:

C₁₆H₃₄ → C₅H₁₂ + C₁₁H₂₂

The process represented by the equation is

• cracking

• fermentation

• polymerization

• reforming

Consider the reaction represented by the following equation:

_xCH₃OH + _yO₂→ 2CO₂ + _zH₂O

The values of x, y and z respectively are

• 2, 3 and 4

• 2, 4 and 3

• 1, 2 and 3

• 1, 3 and 5

Which of the following raw materials is used in a plastic industry?

• Ethene

• Methane

• Calcium

• Hydrogen

A hydrocarbon contains 92.3% carbon. Determine its empirical formula. (H = 1, C =12)

• CH

• CH₂

• CH₃

• C₂H₃

Which of the following reactions is common to all hydrocarbons?

• Combustion

• Addition

• Polymerization

• Condensation

Which of the following organic compounds would decolourise bromine water?

• Benzene

• Cyclobutane

• Hexane

• Pentane