Which of the following explanations is best for not placing hydrogen in either the group of alkali metals or halogens?
- AThe ionization energy of hydrogen is too high for the group of alkali metals,but too low for the halogen group.
- BHydrogen can form compounds with all other elements.
- CHydrogen is a much lighter element than the alkali metals or the halogens.
- DNone of the above.
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Observe the following reactions:
$I$. $N_{2(g)} + 3H_{2(g)} \xrightarrow[773 \ K, \ 200 \ atm]{X} 2NH_{3(g)}$
$II$. $CO_{(g)} + H_{2}O_{(g)} \xrightarrow[673 \ K]{Y} CO_{2(g)} + H_{2(g)}$
$III$. $CH_{4(g)} + H_{2}O_{(g)} \xrightarrow[1270 \ K]{Z} CO_{(g)} + 3H_{2(g)}$
Catalysts $X$,$Y$,and $Z$ respectively are:
$I$. $N_{2(g)} + 3H_{2(g)} \xrightarrow[773 \ K, \ 200 \ atm]{X} 2NH_{3(g)}$
$II$. $CO_{(g)} + H_{2}O_{(g)} \xrightarrow[673 \ K]{Y} CO_{2(g)} + H_{2(g)}$
$III$. $CH_{4(g)} + H_{2}O_{(g)} \xrightarrow[1270 \ K]{Z} CO_{(g)} + 3H_{2(g)}$
Catalysts $X$,$Y$,and $Z$ respectively are:
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