How is Hydrogen typically detected?

Hydrogen is typically detected through chemical analysis. This method is effective because it involves identifying the presence of hydrogen based on its chemical properties. Chemical analysis can include techniques such as gas chromatography, mass spectrometry, or the use of specific reagents that react with hydrogen to produce a measurable change.

For instance, in practical applications, chemical sensors can be used to detect hydrogen by producing an electrical signal when hydrogen is present. This form of detection is reliable and sensitive, enabling the identification of hydrogen even at low concentration levels.

Other methods mentioned, like visual inspection or thermal imaging, cannot reliably detect hydrogen as they don't provide the necessary specificity or sensitivity. Sound detection also does not provide a feasible means of identifying hydrogen since sound does not interact with hydrogen in a way that would yield useful detection results.