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प्रश्न
Name: Two carbonates do not produce carbon dioxide on heating.
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उत्तर
Na2CO3 and K2CO3
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संबंधित प्रश्न
Name three reducing agents ?
Write the chemical reaction where the following changes are observed.
Gas is evolved
State the original colour of the following substance and colour of residue obtained after heating.
Lead nitrate
Give reason for the following:
Electrolytic decomposition of water is a reaction involving change of state.
State the following reaction represent oxidation or reduction.
\[\ce{H->H+}\]
Write some materials prepared by chemical changes.
______ is a natural indicator.
A student took a solution of copper sulphate in a beaker and put a clean iron nail into it and left it for about an hour.
Are these changes chemical in nature?
______ are substances that speed up the process of a chemical change and it will not undergo any change during the course of the reaction.
______ is the chemical name of rust.
