Alkanes
Quiz by Mariam Kamal
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- Q1
Select the incorrect statement regarding alkanes.
It is otherwise known as Paraffin
In alkanes, C-C bonds are single
Alkanes have the general formula CnH2n
It is an acyclic saturated hydrocarbon
30s - Q2
Identify the simplest alkane.
Methene
Methane
Ethane
Ethene
30s - Q3
Select the minimum number of carbon atoms, a molecule must possess so as to be regarded as a higher alkane.
16
17
18
15
30s - Q4
Identify the incorrect statement.
Petroleum and natural gas are the main sources of alkanes
They have very less biological activity
They are very reactive
Alkanes with repeated –CH2– units constitute a homologus series
30s - Q5
Which among the following is not an alkane isomer with 6 carbon atoms?
Hexane
2,3-dimethylbutane
Neopentane
2,2-dimethylbutane
30s - Q6
The other name for branched chain alkanes is .............
Neoparaffins
Paraffins
Naphthenes
Isoparaffins
30s - Q7
Select the incorrect statement regarding the boiling points of alkanes.
Boiling point of straight chain alkanes is greater than that of branched chain alkanes
The boiling point of cycloalkanes is always higher than that of linear alkanes
Boiling point increases with stronger Vander Waal’s forces
Surface area is the only factor which determines the boiling point of alkane
30s - Q8
Choose the correct statement.
They form hydrogen bonds
Alkanes have less density than that of water
They have good solubility in non polar solvents than polar solvents
Alkanes have poor conductivity
30s - Q9
Liquified petroleum gas is mainly composed of ...................
Butane and hexane
Propane and butane
Methane and ethane
Ethane and propane
30s - Q10
An alkane with 6 carbon atoms will have how many hydrogen atoms?
14
12
11
13
30s