Chemistry
Complete the table:
| Indicator | Neutral | Acidic | Alkaline |
|---|---|---|---|
| Litmus | Purple | ………. | ………. |
| Phenolphthalein | Colourless | ………. | ………. |
Related Questions
Write balanced equation to satisfy each statement.
(a) Acid + Active metal ⟶ Salt + Hydrogen
(b) Acid + Base ⟶ Salt + Water
(c) Acid + carbonate or bicarbonate ⟶ Salt + water + carbon dioxide
(d) Acid + sulphite or bisulphite ⟶ Salt + water + sulphur dioxide
(e) Acid + sulphide ⟶ Salt + hydrogen sulphide
The skin has and needs natural oils. Why it is advisable to wear gloves while working with strong alkalis?
What do you understand by pH value? Two solution X and Y have pH values of 4 and 10 respectively. Which one of these two will give a pink colour with phenolphthalein indicator.
Distinguish between a common acid base indicator and a universal indicator.