Question

(i)ferric ions/these/easily oxidize/ferrous ions/into

(ii)is/brown/this ion/in the ferric state/in colour

(iii)are exposed/when/the apple/to the air/is cut/the ferrous ions

(iv)turn/air/and ferric ions/oxidizes them/the surface/brown​

Answer 1

Answer:

1- these ferrous ions easily oxidise into feric ions.

2-this ion is brown in colour in the ferric state .

3- the ferrous ions are exposed when the apple is cut to the air.

4 The surface and ferric ions turn brown oxidise them air