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Activity 4.7 Let us experiment (Demonstration activity) Class 7

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Science Class 7 Science 134 views May 23, 2026 Reviewed & updated Sep 17, 2026
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Activity 4.7 Let us experiment (Demonstration activity) Class 7

Activity 4.7 Let us experiment (Demonstration activity) Class 7

What do you observe?

Answer:

  1. Sulfur burns with oxygen and produces sulfur dioxide gas.
  2. When this gas is dissolved in water, sulfurous acid is formed, which turns blue litmus paper to red. So, the oxides of non-metals are acidic in nature.

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