Which isomer of $C_4H_9OH$ has the lowest boiling point?

Give the structures of the products you would expect when each of the following alcohols reacts with $(a)$ $HCl - ZnCl_{2}$,$(b)$ $HBr$,and $(c)$ $SOCl_{2}$: $(i)$ $Butan-1-ol$,$(ii)$ $2-Methylbutan-2-ol$.

Order of boiling points of the given compounds is:
$(a)$ $\text{pentan-1-ol}$
$(b)$ $\text{butan-1-ol}$
$(c)$ $\text{butan-2-ol}$
$(d)$ $\text{propan-1-ol}$

Arrange the following substances in the increasing order of their normal boiling points: Ether,Carbon tetrachloride,Ethanol,and Water.

The reaction $CH_3-C(CH_3)(OH)-CH_3 \xrightarrow{H_2SO_4} CH_3-C(CH_3)=CH_2$ is an example of:

The starting material is $butan-2-ol$. The reaction with $H^+/\Delta$ yields $(x)$ possible products,and the subsequent reaction of these products with $Br_2/CCl_4$ yields $(y)$ possible products. Determine the values of $x$ and $y$.