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प्रश्न
A chemical reaction is often accompanied by external indications or characteristics.
उत्तर
A chemical reaction is accompanied by a change in colour of reactants and products
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संबंधित प्रश्न
Complete and balance the following chemical equations:
Zn + `"H"_2"SO"_4` `→`
(dil)
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Melting of ice is a _______ change.
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| f. | Fluorine | vi. | Physical change |
| g. | Magnesium | vii. | Tendency to form anion |
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\[\ce{Pb(NO3)2 ->[\Delta]}\]
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