$4-$The pKa value for the indicator that has the $pH$ range $5$ to $7$ is

a$.6$

b$.6{10}^5$

c$.1{10}^{-6}$

d$.4{10}^{-6}$

e$.$ non of theses

$5-$ How many $ml$ of $H_{2}S{O}_4$ needed from a bottle of concentrated aqueous sulfuric acid, labeled $.$ The density is $1\mathrm{.}8\frac{g}{m}l$ and $(FW$ of $H_{2}S{O}_4$ is $98\mathrm{.}079\frac{g}{m}ol)$ to prepare $200ml$ of $1M$ of the acid?

a$.,6\mathrm{.}25ml$

b$.5\mathrm{.}18ml$

c$.3\mathrm{.}48ml$

d$.7\mathrm{.}78ml$

e$.11\mathrm{.}1ml$