Question

Which of the following properties of hydrogen is incorrect?

• A. Like halogens, hydrogen exists as a diatomic gas.
• B. Like halogens, hydrogen exhibits -1 oxidation sate in its compounds with metals.
• C. Like halogens, hydrogen is liberated at cathode.
• D. The ionization energy of hydrogen is quite close to halogens.

Answer 1

Answer: (C)

Like halogens, hydrogen is liberated at cathode.

Answer 2

: Like halogens, hydrogen is liberated at anode, e.g.

$2NaH \rightarrow 2Na + H_{2}$ (at anode)

$2NaCl \rightarrow 2Na + Cl^{2}$ (at anode)