Question

Name some indicators and their effects on acids and bases

Answer 1

Explanation:

Acid - Base indicators (also known as pH indicators) are substances which change colour with pH. They are usually weak acids or bases, which when dissolved in water dissociate slightly and form ions. ... Phenolphthalein is a colourless, weak acid which dissociates in water forming pink anions.

Answer 2

Answer:

Shalom mate,

Indicators are those substances which tell us whether a substance is acidic or basic by change in colour.

Indicators:

1. Red litmus: turns blue when used for bases and remains red for acids

2. Blue litmus :turns red for acids and remains blue for bases

3. Phenolphthalein :turns colourless for acids and pink for bases

4. Methyl orange :turns red for acids and yellow for bases

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