Answer
Verified
37.5k+ views
Hint: Zinc granules are widely preferred for laboratory preparation of hydrogen gas because these granules usually have a small quantity of Cu, which has the ability to act as a catalyst in the given process.
Complete Step-by-Step Answer:
Dihydrogen or just Hydrogen is one of the most widely found gases. Various reactions release hydrogen gas as either a major product or as a by – product. But in most of these cases, the hydrogen gas formed is directly released into the atmosphere. It is very difficult to trap and collect the hydrogen formed because of its light weight and low density.
To collect this hydrogen, a very efficient laboratory method has been developed. The details about this process are as follows:
This process involves 4 major steps:
1. First of all, a certain amount of zinc granules is placed in a flask
2. After this, hydrochloric acid needs to be added to these zinc granules. This is done with the help of a thistle funnel. A replacement for hydrochloric acid could be sulphuric acid.
3. The reaction between the acid and the zinc granules would release hydrogen gas. The gas thus produced is transferred to a vessel filled with water, via a delivery tube.
4. The transferred hydrogen is now collected via a method known as downward displacement of water.
The chemical reaction for this process can be given as:
\[Zn + {H_2}S{O_{4(dil.)}} \to ZnS{o_4} + {H_2}\]
Hence, Option D is the correct option.
Note: Before collecting the hydrogen gas with the help of the apparatus, precautions must be taken in order to ensure that all the air inside the apparatus has been displaced. This is because hydrogen gas reacts explosively with air.
Complete Step-by-Step Answer:
Dihydrogen or just Hydrogen is one of the most widely found gases. Various reactions release hydrogen gas as either a major product or as a by – product. But in most of these cases, the hydrogen gas formed is directly released into the atmosphere. It is very difficult to trap and collect the hydrogen formed because of its light weight and low density.
To collect this hydrogen, a very efficient laboratory method has been developed. The details about this process are as follows:
This process involves 4 major steps:
1. First of all, a certain amount of zinc granules is placed in a flask
2. After this, hydrochloric acid needs to be added to these zinc granules. This is done with the help of a thistle funnel. A replacement for hydrochloric acid could be sulphuric acid.
3. The reaction between the acid and the zinc granules would release hydrogen gas. The gas thus produced is transferred to a vessel filled with water, via a delivery tube.
4. The transferred hydrogen is now collected via a method known as downward displacement of water.
The chemical reaction for this process can be given as:
\[Zn + {H_2}S{O_{4(dil.)}} \to ZnS{o_4} + {H_2}\]
Hence, Option D is the correct option.
Note: Before collecting the hydrogen gas with the help of the apparatus, precautions must be taken in order to ensure that all the air inside the apparatus has been displaced. This is because hydrogen gas reacts explosively with air.
Recently Updated Pages
To get a maximum current in an external resistance class 1 physics JEE_Main
If a wire of resistance R is stretched to double of class 12 physics JEE_Main
Let f be a twice differentiable such that fleft x rightfleft class 11 maths JEE_Main
Find the points of intersection of the tangents at class 11 maths JEE_Main
For the two circles x2+y216 and x2+y22y0 there isare class 11 maths JEE_Main
The path difference between two waves for constructive class 11 physics JEE_MAIN
Other Pages
Differentiate between homogeneous and heterogeneous class 12 chemistry JEE_Main
The mole fraction of the solute in a 1 molal aqueous class 11 chemistry JEE_Main
In the given circuit the current through the 5mH inductor class 12 physics JEE_Main
Explain the construction and working of a GeigerMuller class 12 physics JEE_Main
In a family each daughter has the same number of brothers class 10 maths JEE_Main
Identify which of the above shown graphs represent class 12 physics JEE_Main