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प्रश्न
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
उत्तर
Copper [II] sulphate + Iron → Iron [II] sulphate + Copper
\[\ce{\underset{\text{Blue}}{CuSO4} + Fe ->\underset{\text{Light green}}{FeSO4} + \underset{\text{Brownish red}}{Cu}}\]
The colour changes from blue(CuS04) to light green(FeS04)
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संबंधित प्रश्न
The chemical reaction between two substances is characterised by a change in colour from orange to green. These two substances are most likely to be:
(a) potassium dichromate solution and sulphur dioxide
(b) potassium permanganate solution and sulphur dioxide
(c) potassium permanganate solution and lemon juice
(d) potassium dichromate solution and carbon dioxide.
One of the following is an exothermic reaction. This is:
(a) electrolysis of water
(b) conversion of limestone into quicklime
(c) process of respiration
(d) process of photosynthesis
Balance the following equation. Also name the product formed.
`"Zn" + "HCI" → "ZnCI" _2 + "H"_2`
Balance the following equation:
Fe + H2O → Fe3O4 + H2
Balance the following equation:
PbO + NH3 → Pb + H2O + N2
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
Give word equation for the following chemical reaction and give the names of the product formed.
ZnCO3 → ZnO + CO2
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
Give a reason why the above equation is balanced.
Write a balanced equation for the following word equation:
Potassium bromide + Chlorine → Potassium chloride + Bromine
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
CaC2 + N2 → 2CaCN2 + C
