Latex (texmaker) table \cline - latex

Question

I'm having this problem with creating table in Latex.
So I want to create a table but when I use \cline it gives me
error ! Paragraph ended before \#cline was complete.\par
and much more.
I'm using \usepackage{multiraw}, \usepackage{tabulary} for tables.
The table:
\begin{table}
\centering
\begin{tabular}{|c|c|c|c|c|c|c|}
\hline
\multirow{2}{*}{laktóza $ [\mathrm{mmol \cdot dm^{-3}}] $} & \multirow{2}{*}{} & \multicolumn{5}{c|}{ONPG $ [\mathrm{mmol \cdot dm^{-3}}] $} \\ \
& & \multicolumn{1}{c|}{0,10} & \multicolumn{1}{c|}{0,25} & \multicolumn{1}{c|}{0,50} & \multicolumn{1}{c|}{1,0} & \multicolumn{1}{c|}{2,0} \\ \
\hline
\multirow{2}{*}{0} & $ V_{ONPG} \enskip [\mathrm{\mu l}] $ & 10 & 25 & 50 & 100 & 200 \\ \cline{2-7}
& $ V_{roztok \enskip Z} \enskip [\mathrm{\mu l}] $ & 990 & 975 & 950 & 900 & 800 \\ \ \hline
\end{tabular}
\end{table}
Thanks for every help.

Answer 1

\documentclass{article}
\usepackage{multirow}
\usepackage{tabulary}
\begin{document}
\begin{table}
\centering
\begin{tabular}{|c|c|c|c|c|c|c|}
\hline
\multirow{2}{*}{laktóza $ [\mathrm{mmol \cdot dm^{-3}}] $} & \multirow{2}{*}{} & \multicolumn{5}{c|}{ONPG $ [\mathrm{mmol \cdot dm^{-3}}] $} \\
& & \multicolumn{1}{c|}{0,10} & \multicolumn{1}{c|}{0,25} & \multicolumn{1}{c|}{0,50} & \multicolumn{1}{c|}{1,0} & \multicolumn{1}{c|}{2,0} \\
\hline
\multirow{2}{*}{0} & $ V_{ONPG} \enskip [\mathrm{\mu l}] $ & 10 & 25 & 50 & 100 & 200 \\
\cline{2-7}
& $ V_{roztok \enskip Z} \enskip [\mathrm{\mu l}] $ & 990 & 975 & 950 & 900 & 800 \\
\hline
\end{tabular}
\end{table}
\end{document}
This code compiles and the output should now look like in your thoughts:
Some \ after \\ and before \hline were not supposed to be and produced errors (compare lines 5, 6 and 9 of your code with mine).