Question

Fill in the blanks:
(a) The metal plate through which current enters into an electrolyte is called _________. It has _________ of electrons.
(b) The metal plate through which _________ leaves from an electrolyte is called _________. It has ________ of electrons.
(c) The ions which discharge on the negative electrode during electrolysis _________ electrons. Thus, the ions are said to be _________.
(d) The ions which discharge on the positive electrode during electrolysis __________ electrons. Thus, the ions are said to be ________.
(e) Hydrogen and metallic ions are _________ because they __________ electrons.
(f) Non-metallic ions are __________ because they _________ electrons.

Answer 1

(a) The metal plate through which current enters into an electrolyte is called anode. It has excess of electrons.
(b) The metal plate through which current leaves from an electrolyte is called cathode. It has shortage of electrons.
(c) The ions which discharge on the negative electrode during electrolysis lose electrons. Thus, the ions are said to be ​cations.
(d) The ions which discharge on the positive electrode during electrolysis gain electrons. Thus, the ions are said to be ​anions.
(e) Hydrogen and metallic ions are electropositive because they lose electrons.
(f) Non-metallic ions are electronegative because they gain electrons.