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Why is oxygen collected by downward disp...

Why is oxygen collected by downward displacement of water ?

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Give reasons : Hydrogen is collected by downward displacement of water.

Give reasons : Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.

Give reasons : Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.

An ideal gas is collected by downward displacement of water. Select the correct expression for P_(gas) according to the diagram [d_(Hg)=13.6 g//cm^(3)] :

Carbon dioxide is collected by the downward displacement of air.

Ammonia gas is collected by downward displacement of ..................... .

Fill in the blank from the choices given within brackets : Ammonia gas is collected by ........... (an upward displacement of air, a downward displacement of water, a downward displacement of air)

What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement)?

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ICSE-AIR AND ATMOSPHERE-EXERCISE - II
  1. Name : The most abundant elements in the earth's crust .

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  2. Name : A chemical called oxygenated water.

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  3. Which metal is highly resistant to corrosion?

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  4. Name : A mixture of oxygen and carbon dioxide used for artifical re...

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  5. Name : Two substances from which oxygen can be obtained on a large ...

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  6. Name : An oxide and a carbonate containing oxygen .

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  7. Name : Two substances which undergo rapid oxidation .

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  8. Taking hydrogen perioxide , how would you prepare oxygen in the labor...

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  9. What is the role of manganese dioxide in the preparation of oxygen ?

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  10. Why is hydrogen peroxide preferred in the perparation of oxgyen gas ?

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  11. Why is oxygen collected by downward displacement of water ?

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  12. What happens when a glowing splinter is introuduced in a jar contain...

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  13. What happens when oxygen gas is passes through alkaline pyrogallol ...

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  14. What happens when (i) mercuric oxidie and (ii) potassium nitrate are...

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  15. Why is postassium chlorate not used for laboratory preparation of oxy...

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  16. What are oxide ? Give two examples for each of metallic and non - meta...

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  17. Name the three types of oxidation processes. In which of these, large ...

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  18. Give four uses of oxygen.

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  19. How is oxygen naturally renewed in air ?

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  20. State two differences between : Rusting and buring.

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