C-10-Q165mediumsingle_mcq
Which are correct about rusting of iron?
(i) Rusting needs oxygen
(ii) Salt acts as a catalyst (accelerator)
(iii) Presence of oxygen alone does not produce rust
Which are correct about rusting of iron? (i) Rusting needs oxygen (ii) Salt acts as a catalyst (accelerator) (iii) Presence of oxygen alone does not produce rust
- ai and ii
- bi and iii
- cii and iii
- di, ii and iii