QAActionOfDiluteAcidsOnSubstance
When dilute sulphuric acid or hydrochloric acid is added to a substance a gas may be evolved or there may be a colour change in the solution.
Study the words on the left and their corresponding meanings on the right
| hydrogen evolved | a metal |
| Carbon dioxide evolved | carbonate or hydrogencarbonate |
| sulphur dioxide evolved and pale yellow ppt formed | thiosulphate |
| yellow solution turns orange | chromate(VI) to dichromate(VI) |
| nitrogen dioxide evolved | nitrite |
| sulphur dioxide evolved on warming | sulphite |