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प्रश्न
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
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उत्तर
Chemical property
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संबंधित प्रश्न
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Negatively charged ions are called ..........
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Distillation is a method of obtaining pure ............. from a solution.
What are chemical reactions?
Give an example of a reaction where the following are involved
Light
Give an example of the following chemical change.
Two solids combine to form a liquid
Explain the term ‘chemical reaction’ with special reference to – ‘reactants’ and ‘products’.
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Copper nitrate.
Water boiling into water vapour is an example of chemical change.
Both CO2 and H2 gases are ______.
