Hydrocarbons

The catalyst commonly used in hydrogenation of alkenes is:

1. Iron
2. Nickel
3. Sodium
4. Copper

The shape of a methane molecule is:

1. Linear
2. Trigonal planar
3. Tetrahedral
4. Square planar

The process by which small molecules combine to form large molecules is called:

1. Polymerisation
2. Hydrogenation
3. Cracking
4. Combustion

The molecular formula of ethyne is:

1. C2H2
2. C2H4
3. C2H6
4. C3H4

The reaction of alkanes with chlorine in sunlight is:

1. Addition reaction
2. Substitution reaction
3. Elimination reaction
4. Polymerisation reaction

The main constituent of natural gas is:

1. Ethane
2. Methane
3. Propane
4. Butane

The process of conversion of alkenes into alkanes is called:

1. Oxidation
2. Hydrogenation
3. Polymerisation
4. Substitution

The reagent used to test unsaturation in hydrocarbons is:

1. Bromine water
2. Sodium chloride
3. Hydrochloric acid
4. Ammonia

Benzene is an example of:

1. Alkane
2. Alkene
3. Aromatic hydrocarbon
4. Alkyne

The general formula of alkynes is:

1. CnH2n+2
2. CnH2n
3. CnH2n-2
4. CnHn+2

The hybridisation of carbon atoms in ethene is:

1. sp
2. sp2
3. sp3
4. sp3d

Which of the following is an unsaturated hydrocarbon?

1. Methane
2. Ethane
3. Ethene
4. Propane

Hydrocarbons are compounds made up of:

1. Carbon and oxygen
2. Hydrogen and oxygen
3. Carbon and hydrogen
4. Carbon and nitrogen