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granulated zinc is therefore preferred . it contains traces of copper as an impurity witch catalyses the reaction and prevents the deposition of the gas on zinc

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Q: Why is granulated zinc preferred for lab preparation of hydrogen?
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Why granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid?

Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.


Why is granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid?

Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.


Why granulated zinc is used in the preparation of hydrogen rather than metallic zinc?

Don't know, because granulated zinc IS metallic itself: solid, elemental Zn.


Why is granulated zinc used instead of a block?

If there is Block of zinc, only the zinc on the surface gets exposed to the other reactants but if there is granulated zinc because of its more surface area the zinc is more exposed so the granulated zinc is used for the greater reaction rate.


Why do you think that granulated zinc is used instead of a block?

Granulated zinc is used instead of a block as the surface area of granulated zinc is much more than that of a block. Hence it's easier for it to react with oxygen if the area is more. This is why it's used.


What is the meaning of granulated zinc and wolf's bottle?

formed of grains


Chemical equation for granulated zinc and diluted sulfuric acid?

The Chemical equation for granulated zinc and diluted sulfuric acid is Zn + H2SO4 GIVES(arrow) ZnSO4 + H2O And impurities like arsine (AsH3), phosphine (PH3), CO2, SO2, H2O(gas.) and H2S because granulated zinc has impurities.


What are the important uses of zinc?

1. Preparation of brass 2. Steels plating 3. Preparation of zinc chloride and zinc oxide (for cosmetics and dermatology)


What does an acid plus zinc produce?

Hydrogen gas and a zinc salt.It produces hydrogen and zinc chloride.


Zinc and hydrogen chloride react to produce?

When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.


What are the products formed when granulated zinc reacts with caustic soda?

lund


Zinc carbonate sulfuric acid?

Zn + H2SO4 -> ZnSO4 + H2 Produces zinc sulfate and hydrogen gas.