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प्रश्न
State the following reaction whether heat is evolved or absorbed –
Two neutral gases combine to give a basic gas.
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उत्तर
Nitrogen gas and hydrogen gas give NH3 (ammonia a basic gas).
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संबंधित प्रश्न
Identify the endothermic and exothermic reaction.
\[\ce{CaCO_{3(s)}->[\Delta] CaO_{(s)} + CO2}\]
What do you observe? When
Lead nitrate is heated.
State which type of chemical reaction proceeds with evolution of heat energy.
Differentiate between the following:
A catalyst and a promoter.
Give an example with a balanced equation, of the following reaction:
endothermic reaction
True or False. If false, give the correct answer.
Tarnishing of silver is an example of endothermic change.
Give examples of the endothermic process.
Give a scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reasons.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
