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प्रश्न
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
पर्याय
argon
helium
neon
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उत्तर
The gas which has now replaced hydrogen in air balloons is helium.
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संबंधित प्रश्न
Multiple Choice Question
Hydrogen is responsible for producing
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with steam
Using a burning candle and a jar of hydrogen – how would you prove experimentally that Hydrogen does not support combustion.
Give balanced equation for the following conversion:
Nitrogen to a basic gas – using hydrogen.
Write a correctly balanced equation for the following “word equation”:
calcium + water → calcium hydroxide + hydrogen
Write balanced equation for the following reaction:
magnesium + dil. hydrochloric acid → ___
Write down the “word equation” for the following reaction:
sodium hydroxide solution + zinc → ?
What do the following symbols represent : 2H and H2.
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
