Anyone know organic chemistry?

Question

Predict the products of the following:

CH3CH=CH2 + BR2 -->

CH3CH2CH2CH2CH2Cl --> (with NaOH and heat) -->

CH3CH2CH2CH2CH2Cl --> (with NaOH, ethanol, heat) -->

benzene ring + HNO3 --> (with concentration H2SO4 and heat) -->

please help. I keep reading and reading a level OC books but i don't understand it one iota :(

Answer 1

1. CH3CHBrCH2Br (addition across the double bond)
2. CH3CH2CH2CH2CH2OH (Sn2 reaction)
3. CH3CH2CH2CH2CH2OCH2CH3 (Sn2 reaction of the alkoxide of ethanol)
4. C6H5NO2 (concentrated sulfuric protonates nitric, forming an electrophilic NO2+ cation after H2O leaves)

Answer 2

Organic chemistry is a specific discipline within chemistry which involves the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by other means) of chemical compounds consisting of primarily carbon and hydrogen, which may contain any number of other elements, including nitrogen, oxygen, halogens as well as phosphorus, silicon and sulfur. [1] [2]