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Ethene is able to be collected over water because it is slightly soluble in water. The gas is made from ethanol vapor that is dehydrated by passing over a heated catalyst.

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Can carbon monoxide gas collected by downward displacement of water?

No, carbon monoxide gas cannot be collected by downward displacement of water because it is less dense than water and will not displace the water. A gas that is less dense than water will not be trapped within the water, causing it to simply rise to the surface.


Gas collected by displacement of water?

Gas can be collected by displacement of water using the principle that gases are less dense than water. The gas is generated in a reaction and displaces the water in a container, causing the gas to rise and be collected in an inverted vessel. This method allows for the collection and measurement of the gas produced in the reaction.


What is the method used to collect a gas?

Gas can be collected using various methods such as downward displacement of water, over water displacement, or through absorption into a liquid. The choice of method depends on the physical and chemical properties of the gas being collected.


How is ammonia gas collected in the laboratory preparation of ammonia gas?

Ammonia gas is collected by upward displacement of air in the laboratory preparation. This involves passing the gas over water and collecting it by downward displacement because ammonia is lighter than air. The gas is then bubbled through water to dissolve any remaining gas before use.


How can you distinguish between ethene and ethyne by means of a chemical reaction?

One way to distinguish between ethene and ethyne is by performing a bromine water test. Ethene will decolorize bromine water, turning it from orange to colorless, while ethyne will not react with bromine water. This test takes advantage of the unsaturation in ethene that allows it to quickly react with bromine.

Related Questions

Can carbon monoxide gas collected by downward displacement of water?

No, carbon monoxide gas cannot be collected by downward displacement of water because it is less dense than water and will not displace the water. A gas that is less dense than water will not be trapped within the water, causing it to simply rise to the surface.


Why can't chlorine gas be collected by the method of water displacement?

because it is highly soluble in water


Gas collected by displacement of water?

Gas can be collected by displacement of water using the principle that gases are less dense than water. The gas is generated in a reaction and displaces the water in a container, causing the gas to rise and be collected in an inverted vessel. This method allows for the collection and measurement of the gas produced in the reaction.


What is the colour ethyne after combustion?

By combustion ethyne is transformed in carbon dioxide and water.


Why methane is collected by downward displacement?

Methane is not soluble in water and the density is also lower.


What is the method used to collect a gas?

Gas can be collected using various methods such as downward displacement of water, over water displacement, or through absorption into a liquid. The choice of method depends on the physical and chemical properties of the gas being collected.


How is ammonia gas collected in the laboratory preparation of ammonia gas?

Ammonia gas is collected by upward displacement of air in the laboratory preparation. This involves passing the gas over water and collecting it by downward displacement because ammonia is lighter than air. The gas is then bubbled through water to dissolve any remaining gas before use.


How can you distinguish between ethene and ethyne by means of a chemical reaction?

One way to distinguish between ethene and ethyne is by performing a bromine water test. Ethene will decolorize bromine water, turning it from orange to colorless, while ethyne will not react with bromine water. This test takes advantage of the unsaturation in ethene that allows it to quickly react with bromine.


How do you collect ammonia gas?

Ammonia gas can be collected by the downward displacement of air because it is lighter than air. It can also be collected by the upward displacement of air because it is water soluble and less dense than air. Additionally, it can be collected using a gas syringe or gas-collecting bottle attached to the reaction vessel where ammonia is being generated.


Why hydrogen cant be collected by the downward displacement of air?

Hydrogen is lighter than air, which is why it rises upwards in the atmosphere. When collected by the downward displacement of air, the denser air prevents the lighter hydrogen from being fully collected as it continues to rise. This method is more effective for gases that are denser than air.


Why is ammonia gas not collected over water?

Ammonia gas reacts with water to form ammonium hydroxide, a basic solution. This reaction reduces the amount of ammonia gas collected and may lead to inaccuracies in the experimental results. To prevent this, ammonia gas is typically collected using an alternative method such as downward displacement of air or through a gas syringe.


What is upward displacement and downward displacement of water?

Upward displacement of water occurs when an object is placed in water, causing the water level to rise. Downward displacement of water occurs when an object is submerged into water, causing the water level to drop.