Hydrogen resembles both alkali metals as well as halogens. Select the correct statement out of the following

• A

  H-atom has 1s¹ electronic configuration that shows possibility of losing and gaining one electron under different circumstances

• B

  It can form monovalent cation as well as monovalent anion

• C

  Electrolysis of HCI give H₂ gas at cathode while that of NaOH gives H₂ at anode

• D

  All are correct