Question

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A compound X has a molecular formula C5H10 .Write down the empirical formula of X. ​

Answer 1

Answer:

Explanation:

1−pentene−CH  

2

​  

=CHCH  

2

​  

CH  

2

​  

CH  

3

​  

 

2−pentene−CH  

2

​  

CH=CHCH  

2

​  

CH  

3

​  

 

(CH  

3

​  

)  

2

​  

C=CHCH  

3

​  

  is 2-methyl but-2-ene.

All these contain primary and secondary hydrogen atoms and gives at least 2 monochlorination products.

Only cyclopentane gives 1 monochlorination product as only secondary hydrogen atoms are present and only one type of hydrogen can be replaced.

Option D is correct.

Answer 2

CH2

In C5H10 , here 5 and 10 both are divisible by only 5, so we got CH2. For example: C6H12O6 have empirical formula CH2O because, it is divisible by 6 or by 2 then further divisible by 3.