Sample Papers For Chemistry Cbse Board Sample Papers For Chemistry Cbse Board 1. State your observations when a clean magnesium strip is held in a Bunsen flame for some time. 2. Name the products formed when zinc granules are treated with dilute sulphuric acid. 3. What do you observe when a matchstick flame is brought near a tube containing hydrogen gas? 4. Write a balanced equation for chemical combination reaction in which a metal reacts with non-metal. 5. Write a balanced chemical equation for a photo decomposition reaction. 6. Write a balanced chemical equation for chemical combination reaction in which two compounds react. 7. When copper metal corrodes, a green deposit is formed on its surface. What is the chemical name and chemical formula of this green deposit? 8. What kind of chemical reaction takes place when electric current is passed through fused lead bromide? Support your answer by a chemical equation.
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