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प्रश्न
Give an example of a reaction where the following are involved
Heat
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उत्तर
\[\ce{CuCO3_(_s_) ->[\Delta] CuO + CO2_(_g_)}\]
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संबंधित प्रश्न
Changes in which new substances are formed are called ______ changes.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Compounds, which in their molten state allow an electric current to pass through them are called
- electrolytes
- non-electrolytes
- non-conductors
- none of these
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
Give a word equation for the following reaction.
Two solids which combine on heating, to give a liquid.
Complete the table given below.
| Heat on ammonium dichromate | Name of neutral gas evolved |
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
______ is not a chemical change.
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
Is the conversion of milk into ice cream a chemical change?
