Which of the following explains why epoxides are much more reactive than ethers?

A$)$ The $C-O-C$ bond angle of an epoxide is $109,$ making epoxides have angle strain.

B$)$ The oxygen atom of an epoxide is $s{p}^2$ hybridized.

C$)$ The $C-O-C$ bond angle of an epoxide is $120,$ making epoxides have angle strain.

D$)$ The $C-O-C$ bond angle of an epoxide is $60,$ making epoxides have angle strain.

What is the IUPAC of the following compound?

A$)($S$)-2,2-$Dimethyl$-3-$pentanol

B$)($R$)-2,2-$Dimethyl$-3-$pentanol

C$)($R$)-4,4-$Dimethyl$-3-$pentanol

D$)($S$)-1-$tert$-$Butyl$-1-$propanol

Which of the following reactions will provide the best yield of ether by the Williamson ether synthesis?

A$)$ Bromobenzene and sodium methoxide.

B$)$ Phenol and sodium methoxide.

C$)$ Bromobenzene and bromomethane.

D$)$ Sodium phenoxide and bromomethane.

What is the best choice of reagent to accomplish the following transformation?

A$)HCl$

B$)SOC{l}_2,$ pyridine

C$)C{l}_2$

D$)H_3{O}^{+},H_{2}O$

What is the major organic product obtained from the following sequence of reactions?

A$)($S$)-2-$Methoxypentane

B$)($R$)-2-$Methoxypentane

C$)(+-)-2-$Methoxypentane

D$)$ trans$-2-$Butene

What is the product of the following reaction?

IV