229 – How many of the following statements are correct?
One of the disadvantages of the Hall process is the emission of greenhouse gases.
Aluminum is an active metal; its oxide is adhesive and dense.
In an electrolytic cell, the cathode and anode can be of the same material.
The strongest reducing elements are located on the right side of the periodic table.
Among the applications of cryolite: extraction of aluminum metal, production of gases like hydrogen.
(1) 2 (2) 3 (3) 4 (4) 5
\textbf{229 –} How many of the following statements are correct?
\begin{itemize}
\item One of the disadvantages of the Hall process is the emission of greenhouse gases.
\item Aluminum is an active metal; its oxide is adhesive and dense.
\item In an electrolytic cell, the cathode and anode can be of the same material.
\item The strongest reducing elements are located on the right side of the periodic table.
\item Among the applications of cryolite: extraction of aluminum metal, production of gases like hydrogen.
\end{itemize}
\begin{center}
(1) 2 \hspace{1.5cm} (2) 3 \hspace{1.5cm} (3) 4 \hspace{1.5cm} (4) 5
\end{center}
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