Reaction of Non Metals with Oxygen

TutorVista

11 Mar 201301:08

Summary

TLDRThe video demonstrates the reaction of a non-metal (phosphorus) with oxygen. A piece of phosphorus is burned in a china dish, producing white fumes when covered with an inverted gas jar. After adding water to the jar and shaking, the white fumes dissolve. Blue litmus solution is added, and its color changes to red, indicating that the oxide formed (phosphorus oxide) is acidic in nature. This experiment proves that non-metallic oxides are acidic.

Takeaways

🔥 Non-metals react with oxygen to form oxides.
📄 Phosphorus is used as an example of a non-metal in this experiment.
🔥 The phosphorus is burned with the help of a glowing splinter.
⚗️ The burning phosphorus releases white fumes, which fill the gas jar.
💧 After burning, water is poured into the gas jar to dissolve the white fumes.
📘 Blue litmus solution is added to the water in the jar.
🔴 The litmus changes color from blue to red, indicating an acidic reaction.
🧪 The experiment demonstrates that phosphorus oxide is acidic.
🧬 Non-metallic oxides tend to be acidic in nature.
🔍 This experiment proves that non-metallic oxides, like phosphorus oxide, are acidic.

Q & A

What happens when phosphorus is burned in a gas jar?
-When phosphorus is burned in a gas jar, the jar gets filled with white fumes.
Why is the gas jar covered after burning phosphorus?
-The gas jar is covered to trap the white fumes produced when phosphorus burns, allowing further observation.
What is observed when water is added to the gas jar filled with white fumes?
-When water is added and shaken, the white fumes dissolve in the water.
What does the addition of blue litmus solution to the water in the jar show?
-When blue litmus solution is added, it turns red, indicating that the substance is acidic.
What is the significance of the litmus paper turning red?
-The litmus paper turning red shows that the oxide formed from the phosphorus is acidic.
What type of oxide is formed when phosphorus burns?
-An acidic oxide is formed when phosphorus burns, as indicated by the change in litmus color.
What does this experiment prove about non-metallic oxides?
-This experiment proves that non-metallic oxides, like the oxide of phosphorus, are acidic in nature.
Why is a glowing splinter used in this experiment?
-A glowing splinter is used to ignite the phosphorus, initiating the burning process.
Why is phosphorus placed on a china dish for this experiment?
-Phosphorus is placed on a china dish because it is a heat-resistant material, safe for high-temperature reactions like burning phosphorus.
What does the white fume indicate in this experiment?
-The white fume indicates the formation of phosphorus oxide as a result of the burning process.

Outlines

00:00

🔥 Reaction of Phosphorus with Oxygen

This paragraph describes an experiment involving phosphorus, a non-metal, being burned in oxygen. A small piece of phosphorus is placed on a China Dish and ignited with a glowing splinter. The burning phosphorus produces white fumes, which are collected in an inverted gas jar. After making the jar upright and adding water, the fumes dissolve. Adding blue litmus solution to the mixture turns it red, indicating that the oxide of phosphorus is acidic. The experiment concludes that non-metallic oxides, like those of phosphorus, are acidic in nature.

Mindmap

Keywords

💡Non-metals

Non-metals are elements that typically lack the properties of metals, such as high conductivity, malleability, and luster. In the video, phosphorus is used as an example of a non-metal, highlighting its distinct behavior when reacting with oxygen. Non-metals tend to form acidic oxides when burned, which is demonstrated through the experiment.

💡Phosphorus

Phosphorus is a highly reactive non-metal that combusts when exposed to oxygen. In the video, a small piece of phosphorus is burned to show how non-metals react with oxygen. The experiment emphasizes how phosphorus produces white fumes and forms an acidic oxide.

💡Oxygen

Oxygen is a reactive gas that plays a key role in combustion reactions. The video demonstrates how non-metals like phosphorus react with oxygen, producing acidic oxides. Oxygen is essential in the experiment as it facilitates the burning of phosphorus.

💡China Dish

A China Dish is a small, shallow ceramic dish used in laboratory experiments for heating or burning substances. In the video, it is used to hold the phosphorus during combustion, ensuring that the reaction can be safely observed.

💡Gas jar

A gas jar is a container used to collect and contain gases during chemical reactions. In the experiment, it is inverted over the burning phosphorus to capture the resulting fumes, which allows the viewer to observe the production of phosphorus oxide.

💡White fumes

White fumes refer to the visible byproduct of the phosphorus burning in oxygen, which are phosphorus oxide particles. These fumes are captured inside the gas jar and later dissolve in water, revealing their acidic nature.

💡Acidic

The term 'acidic' refers to a substance's ability to turn blue litmus paper red and to produce hydrogen ions (H⁺) in water. The video shows that phosphorus oxide, the result of burning phosphorus in oxygen, dissolves in water to form an acidic solution, confirming the acidic nature of non-metallic oxides.

💡Litmus solution

Litmus solution is a pH indicator used to test whether a substance is acidic or basic. In the video, after the phosphorus oxide dissolves in water, blue litmus solution is added. Its color change to red confirms the acidity of the solution, reinforcing the point that non-metal oxides are acidic.

💡Oxide

An oxide is a compound formed when an element reacts with oxygen. In this experiment, phosphorus reacts with oxygen to form phosphorus oxide, which dissolves in water to show its acidic nature. The video emphasizes that non-metal oxides like phosphorus oxide are acidic.

💡Non-metallic oxides

Non-metallic oxides are compounds formed when non-metals react with oxygen. In the video, phosphorus oxide is the non-metallic oxide produced when phosphorus burns. The video concludes that non-metallic oxides are acidic, as demonstrated by the litmus test.

Highlights

Phosphorus is placed on a China dish for combustion.

Phosphorus is ignited with a glowing splinter.

A gas jar is inverted over the burning phosphorus.

White fumes fill the gas jar during the reaction.

The gas jar is made upright, and water is added to dissolve the white fumes.

The white fumes dissolve completely when the gas jar is shaken with water.

Blue litmus solution is added to the dissolved fumes.

The blue litmus solution turns red, indicating a pH change.

The color change shows the acidic nature of the solution.

This experiment demonstrates that phosphorus oxide is acidic.

Phosphorus reacts with oxygen to form a non-metal oxide.

Non-metallic oxides exhibit acidic properties in water.

This experiment is evidence that non-metals react differently from metals when burned in oxygen.

The formation of acidic oxides upon combustion of non-metals is highlighted.

The use of litmus paper helps visually demonstrate the acidic nature of the product.