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प्रश्न
Select the correct answer from the options given below:
State the gaseous product formed, when
Two gases one of them neutral combines by absorption of light energy.
पर्याय
Ammonia
Hydrogen chloride
Hydrogen
Nitrogen dioxide
Nitric oxide
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उत्तर
Hydrogen chloride
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संबंधित प्रश्न
State the effect of an endothermic reaction.
What do you observe when ammonium chloride is dissolved in water.
Identify the endothermic and exothermic reaction.
HCl + NaOH → NaCl + H2O + heat
State the effects of endothermic and exothermic reactions on the surroundings.
Name a compound which produces carbon dioxide on heating.
Give an example with a balanced equation, of the following reaction:
photochemical reaction
Supply of energy may be required to initiate a reaction. State the different forms with a suitable example of reactions initiated by the supply of energy.
Classify the following reaction into Exothermic and Endothermic reactions.
Magnesium ribbon when burned in air, it forms magnesium oxide.
Match the following:
| Colum I | Column II | ||
| 1. | Alloying | a. | Exothermic change |
| 2. | Crystallization | b. | Periodic change |
| 3. | Soap powder + water | c. | Mixing of molten solids |
| 4. | Seasonal changes | d. | Pure solid |
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
