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Tick (√) the Correct Alternative a Pop Sound is Heard When a Lighted Match Stick is Brought Near the Mouth of a Jar. this Indicates the Release of Gas. Oxygen Hydrogen - ICSE Class 7 - Chemistry

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Question

Tick (√) the correct alternative

A pop sound is heard when a lighted match stick is brought
near the mouth of a jar. This indicates the release of gas.

  1. oxygen
  2. hydrogen
  3. nitrogen
  4. water-vapour

Solution

hydrogen

  Is there an error in this question or solution?
Solution Tick (√) the Correct Alternative a Pop Sound is Heard When a Lighted Match Stick is Brought Near the Mouth of a Jar. this Indicates the Release of Gas. Oxygen Hydrogen Concept: Concept of Physical and Chemical Changes.
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