Advertisements
Advertisements
Question
Select the correct options for the following statement:
The gas which has now replaced hydrogen in air balloons is ___.
Options
argon
helium
neon
Advertisements
Solution
The gas which has now replaced hydrogen in air balloons is helium.
APPEARS IN
RELATED QUESTIONS
Give reason for the following:
A pop sound produced when hydrogen is burnt?
Define catalytic hydrogenation.
Multiple Choice Question
Hydrogen is responsible for producing
Multiple Choice Question
Hydrogen is
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
When steam is passed over red-hot iron, magnetic oxide of iron and hydrogen are obtained. “The reaction between steam and red-hot iron is a Reversible Reaction.” What is meant by this statement.
How would you obtain ‘hydrogen from sodium hydroxide’ solution other than by electrolysis?
Complete and balance the following equations:
Al + NaOH + ____ → ____ + ____
What do the following symbols represent : 2H and H2.
