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प्रश्न
Fill in the blank
When a piece of copper is added to silver nitrate solution, it turns ............in colour.
उत्तर
When a piece of copper is added to silver nitrate solution, it turns blue in colour.
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संबंधित प्रश्न
Give one example each of which illustrates the following characteristics of a chemical reaction:
evolution of a gas
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A displacement reaction in which a metal above hydrogen in the reactivity series, displaces another metal from the solution of its compound.
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Cu, Zn, Ca, Mg, Fe, Na, Li, Hg
| More reactive | Moderately reactive | Less reactive |
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An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.
