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Exploring Substances: Acidic, Basic, and Neutral — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceExploring Substances: Acidic, Basic, and Neutral5 Marks
Question
What are synthetic indicators? Name two and describe their use.
✓

Answer

Synthetic indicators are substances made in laboratories that show different colors in acidic or basic solutions. Unlike natural indicators, these are not extracted from plants or other natural sources.
synthetic indicators:
(1) Methyl Orange: This indicator is red in acidic solutions and yellow in basic solutions. It's often used in titrations to determine the endpoint of a reaction.
(2) Phenolphthalein: This is colorless in acidic solutions but turns pink in basic solutions. It's also commonly used in titrations and other experiments to observe changes in acidity or basicity.
These indicators provide clear and distinct color changes, making it easier to identify whether a solution is acidic, basic, or neutral.

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