Class 7 Science – Chapter 2 Exploring Substances: Acidic, Basic, and Neutral
Let Us Enhance Our Learning 1. A solution turns the red litmus paper to blue. Excess addition of which of the following solution would reverse the change? (i) Lime water(ii) Baking soda(iii) Vinegar(iv) Common salt solution Answer:(iii) Vinegar Explanation:The solution turns red litmus blue, so it is basic. Vinegar is acidic. Adding excess vinegar will […]
Chapter 2 ExploringSubstances: Acidic,Basic, and Neutral
Let Us Enhance Our Learning 1. A solution turns the red litmus paper to blue. Excess addition of which of the following solution would reverse the change? 2. Based on the observations, which of the following is the correct sequence for the nature of solutions A, B, and C? 3. Label the nature of solutions […]
Chapter 3 : Electricity Circuit and their Components
Here are the questions and their corresponding answers based entirely on the textbook chapter you provided. Let Us Enhance Our Learning (End of Chapter Exercises) 1. Choose the incorrect statement. (i) A switch is the source of electric current in a circuit. (ii) A switch helps to complete or break the circuit. (iii) A switch […]