Q1.Which of the following best describes a combination reaction?

Q2.What is the chemical equation representing the burning of coal, which is an example of a combination reaction?

Q3.What are chemical reactions called in which heat is released along with the formation of products?

Q4.Which of the following processes is explicitly mentioned as an exothermic reaction in the provided text?

Q5.In the process of respiration, what combines with oxygen in the cells of our body to provide energy?

Q6.For what purpose is a solution of slaked lime commonly used?

Q7.What substance is formed when calcium hydroxide (slaked lime) reacts with carbon dioxide in the air on walls, giving a shiny finish?

Q8.What is the chemical formula for marble?

Q9.The decomposition of vegetable matter into compost is an example of which type of reaction?

Q10.What brown fumes are observed when lead nitrate powder is heated?