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प्रश्न
Classify the following as physical or chemical properties
Most metal oxides form alkalis on interacting with water.
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उत्तर
Chemical property
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संबंधित प्रश्न
Define catalyst.
Fill in the blanK
A .............is a substance which changes the rate of a chemical reaction without undergoing a chemical change.
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In a ............ change, new substances are formed.
Define electrolysis.
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The basic conditions necessary for a chemical reaction is _______
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
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Blue solution of copper sulphate changes to green when a piece of iron is added to this solution.
Distinguish by heating the following in dry test tubs.
Zinc carbonate, Copper carbonate and lead carbonate.
Select the correct answer from the options given below:
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An active metal reacts with dilute sulphuric acid.
Name the solid residual product formed reaction and state its colour during – thermal decomposition of the following substance.
Zinc carbonate.
