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प्रश्न
What is thermit process?
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उत्तर
Reaction in which iron oxide reacts with aluminium to produce molten iron. It is an exothermic process.
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संबंधित प्रश्न
With the help of an appropriate example, justify that some of the chemical reactions are determined by a change in colour.
Give a chemical equation for the reaction involved in the above case.
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carbon in CH4
Write the balanced chemical equation of the following reaction.
potassium dichromate + sulphuric acid → potassium sulphate + chromium sulphate + water + oxygen.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of acid required.
Write word equation for the following molecular equation:
\[\ce{N2 + 3H2 ⇌[Fe - 450°C][200 atoms] 2NH3 + \triangle}\]
Word equation:
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State what 200 atmospheres – indicates.
State the function of Fe in the above reaction.
What is meant by ‘reactants’ and ‘products’ in a chemical equation?
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
Write scientific reason.
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Give the characteristic tests for the following gases :
- CO2
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