O Chem questions

[ImDaStyle]

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how many dichlorinated products can be formed from a reaction of propane with molecular chlorine in the present of uv light?

 

[dcl222]

question 4
C) Atom B has 2 lone pairs, and 2 C-C bonds = sp3
Atom A has H-bond, C-C bond, and double bond count as 1 bond = sp2
Atom C has 2 bonds C-C and C-N (triple also 1 bond) = sp

 

[ImDaStyle]

For this one, do you count the original?

 

[dcl222]

i counted 3 resonance total including the original pic. if the answer is 2 then i guess it's badly worded (or i counted wrong)

 

[Maygyver]

What was your question about the first two? And in the number 4, no you don't count the original.

 

[ImDaStyle]

1. how many dichlorinated products can be formed from a reaction of propane with molecular chlorine in the present of uv light?
my answer is 3, im not sure if its right...

for the second one, my answer is A, but im not sure either, can someone confirm for me?

 

[JBarr29]

the second one is definitely A. The trans (E) form cancels out the dipole movement.

 

[ImDaStyle]

thank you so much =D i appreciate it

 

[JBarr29]

and propane that is chlorinated twice can only give two products.
Cl-CH2-CH-Cl-CH3 is one
Cl-CH2-CH2-CH2-Cl is two
some confusion about the third i think comes in because:
CH3-CH-Cl-CH2-Cl which is the first one reversed, but it is the same thing as the first and doesnt count as a product.
i could be wrong but i am fairly certain.

 

[ImDaStyle]

The answer is 4 for that one ... x-x;;;

but thanks for your help =D

 

[dcl222]

count the stereoisomers?

 

[klutzy1987]

It is 4 for the chloronation, because it can be a 1,1 a 2,2 a 1,2 or a 1,3 di-addition. If we count sterioisomers there are 5 different roducts possible.