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प्रश्न
Give reason for the following:
A pop sound produced when hydrogen is burnt?
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उत्तर
Impure hydrogen gas burns in air with a pop sound. This is because of the presence of impurities in it.
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संबंधित प्रश्न
Hydrogen is combustible as well as a supporter of combustion.
Write the balanced equation and give your observation when the following metal reacts:
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Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
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Ammonia and hydrogen chloride
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magnesium + dil. hydrochloric acid → ___
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‘When zinc filings are added to a concentrated solution of sodium hydroxide’.
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
Give balanced equation for obtaining hydrogen from cold water using a divalent active metal.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen has one valence electron.
