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प्रश्न
Select the correct answer from the options given below:
State the gaseous product formed, when
An active metal reacts with dilute sulphuric acid.
पर्याय
Ammonia
Hydrogen chloride
Hydrogen
Nitrogen dioxide
Nitric oxide
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उत्तर
Hydrogen
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संबंधित प्रश्न
Name three biochemical catalysts found in the human body.
Give an example of a reaction where the following are involved
Electricity
Give reason for the following:
Silver nitrate solution is kept in coloured bottles.
Give reason for the following:
Colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it.
Give a chemical test to distinguish between the following gases.
NH3 and SO2
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Explain the following statement: Digestion is a chemical change.
Which of the following is not an “element + element → compound” type reaction?
Assertion (A): Cutting paper into very small pieces is an irreversible change.
Reason (R): Physical changes are always reversible.
What is thermochemical reactions?
