art an d architecture of the Rajput period
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Ques1. On what chemical law, balancing of chemical equation is based?
Ques2. Give an example of photo chemical reaction.
Ques3. Name a reaction which forms insoluble salts.
Ques4. Explain the following in terms of gain and loss of oxygen with one example:a. Oxidationb. Reduction
Ques5. A copper coin is kept in a slotuion of silver nitrate for some time, what will happen to the coin and the colour of the solution?
Ques6. Why do we apply paint on iron articles?
Ques7. What happens chemically when quicklime is added to water?
Ques8. Name the types of reactions in the following:a. Garbage producing foul smellb. Burning of natural gasc. Carbon Dioxide gas passed through lime water
Ques9. Blue crystals of copper sulfate on heating in a dry test tube bocome colourless. Give reason.
Ques10. Why can not a chemical change be reversed normally?
Ques11. Can rusting of iron take place in distilled water?
Ques2. Give an example of photo chemical reaction.
Ques3. Name a reaction which forms insoluble salts.
Ques4. Explain the following in terms of gain and loss of oxygen with one example:a. Oxidationb. Reduction
Ques5. A copper coin is kept in a slotuion of silver nitrate for some time, what will happen to the coin and the colour of the solution?
Ques6. Why do we apply paint on iron articles?
Ques7. What happens chemically when quicklime is added to water?
Ques8. Name the types of reactions in the following:a. Garbage producing foul smellb. Burning of natural gasc. Carbon Dioxide gas passed through lime water
Ques9. Blue crystals of copper sulfate on heating in a dry test tube bocome colourless. Give reason.
Ques10. Why can not a chemical change be reversed normally?
Ques11. Can rusting of iron take place in distilled water?
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