` CuO +H_(2) overset ("ऊष्मा ") to Cu +H_(2)O, ` इस अभिक्रिया में उपचयन तथा अपचयन को दर्शाये ।

CuO+H_(2) to Cu darr+H_(2)O

CuO+H_(2) to Cu darr+H_(2)O

CuO + _____ to CuSO_4 + H_2O

Consider the chemical equations given below and answer the questions which follow : (a) CuO + H_(2) overset("heat")to Cu + H_(2)O . (b) ZnO + C overset("heat")to Zn + CO. (i) Name the substances that are respectively oxidised and reduced. (ii) Identify the reducing agents in each case.