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Displaying 5 out
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questions & answers.
Q1.
Explain : 'Silver nitrate solution is kept in coloured reagent bottles in the laboratory.'
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answer not shownQ2.
Give an example of an endothermic reaction.
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Example of endothermic reaction is,
When carbon is heated with sulphur at high temperature, liquid carbon disulphide is formed.
C + 2S --Δ-> CS2
Q3.
Reactions can be classified as: Direct combination, decomposition, simple displacement, double decomposition, Redox reactions.
State which of the following types, takes place in the reactions given below
| i. Cl2+ 2Kl → 2KCl + l2 | ii. 2Mg + O2 → 2MgO | |
| iii. SO2 + 2H2O + Cl2 → 2HCl + H2SO4 | vi. AgNO3 + HCl → AgCl + HNO3 | |
| v. 4HNO3 → 4NO2 + 2H2O + O2 | ||
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- Double decomposition
- Decomposition
- Redox reaction
- Double decomposition
- Decomposition
Q4.
Explain the term chemical reaction with special reference to reactants and products.
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answer not shownQ5.
Give a suitable example with equation to show the representation of a chemical reaction.
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