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प्रश्न
Balance the following equation:
C + H2SO4 → CO2 + H2O + SO2
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उत्तर
C + 2H2SO4 → CO2 + 2H2O + 2SO2
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संबंधित प्रश्न
How will you indicate the following effect in a chemical equation?
Endothermic reaction
Which of the following are endothermic reactions and which are exothermic reactions?
- Burning of natural gas
- Photosynthesis
- Electrolysis of water
- Respiration
- Decomposition of calcium carbonate
One of the following is an exothermic reaction. This is:
Write the chemical equation for the following word equation and balance them.
Carbon + Oxygen → Carbon dioxide
Match column A with column B.
| Column A | Column B |
| (a) Blue salt changes to white and then black | (i) Ammonium dichromate |
| (b) Orange coloured compound changes to green. | (ii) Iodine |
| (c) Red compound changes to brown and then yellow. | (iii) Zinc Nitrate |
| (d) White to yellow when hot and white when cold. | (iv) Copper sulphate |
| (e) Violet solid changes to violet vapours. | (v) Red Lead |
Give word equation for the following chemical reaction and give the names of the product formed.
Zn + 2HC1→ ZnCl2 + H2
Balance the following simple equation:
ZnS + O2 → ZnO + SO2
Write a balanced equation for the following word equation:
Potassium nitrate → Potassium nitrite + Oxygen
Give a balanced equation by partial equation method, [steps are given below].
The reaction of excess ammonia with chlorine – Ammonia as a reducing agent
- Ammonia first reacts with chlorine to give hydrogen chloride and nitrogen.
- Hydrogen chloride then further reacts with excess ammonia to give ammonium chloride.
A dilute ferrous sulphate solution is gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?
