Give chemical reactions for the following conversions:
$1$. $2-$bromobutane from $2-$butyne
$2$. $2-$propanol and $1-$propanol from propyne

(N/A) $1$. Conversion of $2-$butyne to $2-$bromobutane:
$CH_3-C \equiv C-CH_3$ $\xrightarrow{Pd/C, H_2} CH_3-CH=CH-CH_3$ $\xrightarrow{HBr} CH_3-CH_2-CH(Br)-CH_3$
$2$. Conversion of propyne to $1-$propanol and $2-$propanol:
$CH_3-C \equiv CH \xrightarrow{Pd, H_2} CH_3-CH=CH_2$
$(i)$ For $1-$propanol (Hydroboration-oxidation):
$CH_3-CH=CH_2 \xrightarrow[(ii) H_2O_2, OH^-]{(i) BH_3, THF} CH_3-CH_2-CH_2OH$
(ii) For $2-$propanol (Acid-catalyzed hydration):
$CH_3-CH=CH_2 \xrightarrow{Conc. H_2SO_4, H_2O} CH_3-CH(OH)-CH_3$