What Is The pH Scale

This video tutorial explores the pH scale and indicators used to determine if a substance is acidic, neutral, or alkaline. It explains how litmus paper and universal indicators work, providing examples of substances with different pH values. The video concludes with a summary of key points, emphasizing the importance of understanding pH levels and the use of indicators.

How does litmus paper indicate whether a substance is acidic or alkaline?

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What are the color changes of red and blue litmus paper in different conditions?

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What is the pH scale and what does it indicate?

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Explain the difference between universal indicator and litmus paper.

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What pH values correspond to acids, neutral substances, and alkalis?

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