Which of the following properties of hydrogen is incorrect? (a) Like halogens hydrogen exists as...

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Which of the following properties of hydrogen is incorrect?
(a) Like halogens hydrogen exists as a diatomic gas.
\( \mathrm{P} \)
(b) Like halogens, hydrogen exhibits \( -1 \) oxidation state in its compounds with metals
W
(c) Like halogens, hydrogen is liberated at cathode.
(d) The ionisation energy of hydrogen is quite close to halogens.
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