The following questions are about ethyl bromide, n-propyl bromide, isopropyl bromide, t-butyl bromide, & neopentyl bromide
a) draw the sturctures of these compounds
a)between ethyl bromide, n-propyl bromide and neopentyl bromide, which has the highest sn2 and lowest sn2 reactivitiy? explain why
b) between ethyl bromide, isopropyl bromide, and t-butyl bromide, which has the highest sn1 and lowest sn1 reactivity? . explain why

a) Watch the attaccment

b) Ethyl bromide is more reactive than n-propyl bromid, and this more than neopentyl bromide. Ethyl bromide has less steric hindrance than the others, to SN2 reactions.

c) t-butyl bromide is more reactive than  isopropyl bromide, and this more than ethyl bromide. t-butyl bromide structure stabilize the carbocation, better than the others.

Explanation:

Speed of SN2 reactions depends on steric hindrance, the less hindrance, the most reaction speed, meaning more reactivity. Then, those linear structures are more reactive to SN2 reactions.

In the other hand, speed of SN1 reactions depends on the stability of the carbocation formed. Structure with ramifications can stabilize better the carbocation, these structures are more reactive to SN1 reactions.

- lead + phosphoric acid = hydrogen + lead(ii) phosphate