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प्रश्न
Write word equation for the following chemical reaction given below. Also state the observation seen in the case.
\[\ce{ZnCo3->[\triangle] ZnO + CO2}\]
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उत्तर
\[\ce{Zinc Carbonate ->[heat] Zinc Oxide + Carbon dioxide}\]
CO2 (g) is formed in the above chemical reaction.
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संबंधित प्रश्न
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- Name the lead salt.
- Name the brown fumes.
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\[\ce{KNO3 -> KNO2 + O2}\]
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Electrical energy
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\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
State why the compound MnO2 is written above the arrow.
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Write names of reactants and products of chemical reaction.
Three beakers labelled as A, B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is(are) correct?
- In beakers A and B, exothermic process has occurred.
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- In beaker C exothermic process has occurred.
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