How was p12 9701 2017

[Dukula Jayasinghe]

What did you put for a question on pvc, on part B? There was something like does pvc molecule has n number of chiral carbon atoms.

PVC is (-CHCl-CH2-)n. There are 7 sigma bonds in this, not 5. Hence 3 is incorrect. Then, it has n number of chiral carbons as there is only 1 chiral carbon present..The final answer was 2 & 1 was correct. B.

 

[aisha martin]

PVC is (-CHCl-CH2-)n. There are 7 sigma bonds in this, not 5. Hence 3 is incorrect. Then, it has n number of chiral carbons as there is only 1 chiral carbon present..The final answer was 2 & 1 was correct. B.

Doesn't it not have any chiral carbon i mean take 2 monomer for example [-CH2-CHCl-CH2-CHCl-] the C attached to the Cl atom will no longer be chiral because it's connected to two -CH2. Is my logic correct or wrong?

 

[Evgeny]

Doesn't it not have any chiral carbon i mean take 2 monomer for example [-CH2-CHCl-CH2-CHCl-] the C attached to the Cl atom will no longer be chiral because it's connected to two -CH2. Is my logic correct or wrong?

Can't it form (CH3-CHCl-CHCl-CH3)?

 

[Slayer10199]

And the acid rain question's answer was A?
In which the first option was that oxides of sulfur and nitrogen contribute to acid rain.

Guys what about this please??????????. I'm worried

 

[Dukula Jayasinghe]

Guys what about this please??????????. I'm worried

Yeah. Answer is (A)