अभिक्रिया MnO_2 + 4HCl to MnCl_2 + 2H_2O + Cl_2है ? निर्णय करेंकि कौन-से पदार्थ अपचायक और कौन-से...

In the reaction MnO_(2)+4HCl to MnCl_(2)+2H_(2)O+Cl_(2)

In the reaction MnO_(2) + 4HCl to MnCl_(2) + 2H_(2)O + Cl_(2) , identify which one is reduced and which one is oxidized ?

What is redox reaction ? Identify the substance oxidised and the substance reduced in the following reactions : (i) MnO_(2) + 4HCl to MnCl_(2) + 2H_(2)O + Cl_(2) (ii) CuO + H_(2) to Cu + H_(2)O