Question

27. Recognise the oxidised substances and reduced substance in the following reactions :
(1) 4Na(s) + O2(g) → 2Na2O(s)
(2) CuO(s) + H2(g) → Cu(s) + H2O(g)
(3) 2PbO(s) + C(s) → 2Pb(s) + CO2(g)​

Answer 1

Answer:

1.oxidise

2.redeced.

3.reduced