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Question

Choose the correct statement 


Correct Answer
A
At room temperature, alkene of higher carbon chain (>C19) are solids in nature 
Correct Answer
B
Alkenes are colourless 
Correct Answer
C
Alkenes of carbon chain (>C3) are odourless 
Your Answer
D
Alkenes are soluble in water 

Solution

The correct options are
A At room temperature, alkene of higher carbon chain (>C19) are solids in nature 
B Alkenes are colourless 
C Alkenes of carbon chain (>C3) are odourless 
Physical properties of alkenes:
1. Physical state: (At room temperature)
C2C4 Gases
C5C18 Liquids 
C19 Solids 

2. Colour : All alkenes are colourless 

3. Odour :
C2 Faint sweet smell
C3 Odourless

4. Solubility:
Alkenes are non polar and they dissolve in non polar solvents like benzene, petrol, ether, etc., 
Alkenes are insoluble in water because water in polar solvent.

Therefore, the correct statements are (a), (b) and (c). 

 

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