Why should a magnesium ribbion be cleaned before burning in air?

Question

Answer

Mangnesium ribbon should be cleaned before burning because a layer of mangnesium oxide is formed on the mangnesium ribbon due to reaction between mangnesium and oxygen present in air!!

Answer

Magnesium ribbon should be cleaned before burning in the air because of the following reasons:

To remove the layer of magnesium oxide formed due to the reaction between magnesium and air

Unwanted impurities deposited on the magnesium ribbon can be removed and only pure magnesium can be used for reaction

To remove the Magnesium oxide layer from the ribbon which may prevent or slow down the burning of magnesium ribbon.

Answer

Magnesium ribbon forms a layer of oxide when exposed to air.So it is cleaned before burning to remove that layer.

Answer

Magnesium react with oxygen to form magnesium oxide, which does not burn. So to remove this oxide layer Magnesium ribbon is cleaned with sand paper before burning.

Answer

It is because to remove the layer which is formed over the magnisium due to the exposure of surroundings ..

Answer

Magnesium occurs naturally only in combination with other elements, where it invariably has a +2 oxidation state. The free element (metal) can be produced artificially, and is highly reactive (though in the atmosphere, it is soon coated in a thin layer of oxide that partly inhibits reactivity – see passivation). That's why a magnesium ribbon or strip of it is rubbed with sandpaper,so that the layer of oxides formed over it's surface may get removed!

Answer

Magnesium is  a reactive metal. Therefore when it is left exposed in air  it reacts with oxygen and forms Magnesium oxide to remove this oxide it is cleaned before burning in air. ..

Answer

When magnesium ribbon is exposed to air, it gets covered with a layer of magnesium oxide. This oxide layer further hinders the process of burning. Thus, to carry out the burning of magnesium without any hinderance it is cleaned with a sand paper.

Answer

Magnesium ribbon must be cleaned before burning in air so that the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the chemical reaction-
2Mg +O2 -- >2MgO

Answer

Magnesium is very reactive metal. When stored it reacts with oxygen  to form a layer magnesium oxide on its surface. This layer of magnesium oxide is quite stable and prevents further reactions of magnesium with oxygen.  The magnesium ribbon is cleaned by sand paper to remove this layer so that the underlying metal can be exposed into air.

Answer

Magnesium ribbon must be cleaned before burning in air so that the layer ofmagnesium oxide (which is formed due to reaction ofmagnesium with air) can be removed in order to get the desired chemical reaction.

Answer

Introduction:
Magnesium is a highly reactive metal and readily reacts with oxygen in the air to form magnesium oxide. Before burning magnesium ribbon in air, it is important to clean the ribbon to remove any impurities or oxide layers that may be present on its surface. Cleaning the magnesium ribbon ensures a clean and efficient burning process, allowing for accurate observations and measurements to be made.

Reasons for cleaning Magnesium ribbon before burning:

1. Removal of impurities:
Magnesium ribbon may contain impurities such as dirt, dust, or other contaminants that can hinder the burning process. These impurities can act as a barrier between the magnesium and the surrounding air, preventing proper contact and reaction. Cleaning the ribbon helps remove these impurities, ensuring a clean surface for the reaction to occur.

2. Removal of oxide layer:
Magnesium readily reacts with oxygen in the air to form a layer of magnesium oxide on its surface. This oxide layer can act as a protective barrier, preventing further reaction with oxygen. Burning magnesium with an oxide layer may result in an incomplete or inefficient reaction. Cleaning the ribbon helps remove this oxide layer, exposing fresh magnesium for the reaction.

3. Enhanced reactivity:
By cleaning the magnesium ribbon, its reactivity can be enhanced. The removal of impurities and oxide layers allows for direct contact between the magnesium and the surrounding air, promoting a rapid and vigorous reaction. This ensures a more intense and visible flame during the burning process.

4. Accurate measurements:
Cleaning the magnesium ribbon before burning also allows for accurate measurements to be made. Any impurities or oxide layers present on the ribbon may interfere with the measurement of the ribbon's mass or length. Cleaning ensures that the measurements reflect the true properties of the magnesium ribbon, providing reliable data for analysis.

Conclusion:
Cleaning magnesium ribbon before burning in air is essential to remove impurities, oxide layers, and enhance its reactivity. This ensures a clean and efficient burning process, allowing for accurate observations and measurements to be made. By following proper cleaning procedures, one can obtain reliable data and successfully carry out experiments involving the combustion of magnesium ribbon.

Similar Class 10 Doubts

Why should a magnesium ribbon be cleaned before burning in air?

Why should magnesium ribbon be cleaned before burning in air?

why should a magnesium ribbon be cleaned before burning in air?

Why should a magnesium ribbon be cleaned before burning in air ?

Why should a magnesium ribbon be cleaned before burning in air please answer?

Top Courses for Class 10View all

Science Class 10

Social Studies (SST) Class 10

Mathematics (Maths) Class 10

English Grammar Advanced

English Grammar Basic

Top Courses for Class 10

Top Courses for Class 10

Suggested Free Tests

Related Content

About Class 10

Class 10 Study Material

Class 10 All Subjects

NCERT Textbook Solutions

Other Classes

Important Links

Company