experiment no 3 Action of water on quick lime ||combination reaction CaO #class10science

Hey guys, and welcome to my channel. Friends, my name is Ajay Shukla, and you are watching A to Z Practical. Friends, the experiment we are about to begin today is the 10th experiment, number 3. Classification of the chemical reaction of combination. So, what is a combination reaction? We are going to see that. Some or other two things are combined and yield the product in combined form. For example, the 10th experiment which I am going to conduct here, Both children from Hindi and English medium schools can see and understand it. And they can also fill out their handbook. What happens is that when you add water to calcium oxide, it produces calcium hydroxide. And heat is released from it. It means that when you touch the watch glass, you will know that heat is being released. Heat is released, but the product is formed. And this is called calcium hydroxide. So, let me show you through the experiment how it happens and how the reaction is carried out. So, let me begin the experiment. So, friends, what I am going to do now is add this water to the CaO. When I add it, you'll get to see the reaction here. See, I've added it here. So, when we add it in this, it is a highly exothermic reaction, releasing heat. You may not know this, but I'm just realizing it's getting a bit hot here. This CaO is getting a bit hot. And after adding water, it forms calcium hydroxide here. What does it produce? It produces calcium hydroxide. So, after adding it, the lower part becomes slightly hot. In which we learn that it is an exothermic reaction. And heat is released from here. And calcium hydroxide is formed here. And this reaction is called a combination reaction. And this is Usma Abhikriya. What is this? This is Usma Abhikriya. So, this is how the 10th experiment goes. It is a very simple experiment. I will clear both of your results now. So, friends, you've seen its observation of what happens here. Heat is released. I have told you everything here. How to fill, how to feel. So, friends, this contains all the practicals for 10th, 11th, and 12th. Go check out this channel. Check out your playlist. The playlist for the 10th and 11th is different. The playlist for the 12th is different. Go and support the channel. Because one subscriber means a lot to me. So, thank you for watching this video. And please subscribe to ATJ Practical. Thank you.