Question

Some questions about Organic Chemistry. Please Help got a Test Tomorrow. =c
Check the attachments

Answer 1

For question #19
When I checked the mark scheme the answer is D
Why the number of chiral centre is 6 ?

For question #22 - Answer key is D
How can an acid with a halogen undergo free radical subsititution can someone explain ?
According to my knowledge reference I beilieve that halogenoalkanes only undergo free radical susbtitution ?

For question#23 - Answer Key is B
I just want to check something is it because the defination of a polymer consists of long chain monomers ? so thats why they're long ? but why are they weaker ?

For question 25- Answer Key is B
How 2 bromopropane gives two products and 1 bromopropane gives one product ?

For question 26 - Answer key is A
Explain it clearly please :\

For question 28 - Answer key is C
I only found 2 , hows it 3 ? :O

For question 29 - Answer key is D
Can someone explain this clearly ? :(

For question #38 - Answer key is 1 and 2
I believe that geraniol is a primary alcohol and when it is oxidized it will give an aldehyde not a ketone ? so some explaination please :s

For question #40 - Answer key is 1 and 2
I got this answer right but when I was checking for the molecule in 1 I wrote it in this way