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JNAN PUBLICATION-KNOW ABOUT SOME COMMON GASES (OXYGEN AND HYDROGEN)-EXAMPLE
- State whether True or False:- Air is about 14.4 times havier than .
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- State whether True or False:- Hydrogen does not help in burning but ...
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- State whether True or False:- Platinum can absorb gas at normal tem...
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- Match the following:-
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- What does the decomposition of H2O2 produce?
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- What is the chemical symbol of hydrogen?
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- What is the specific gravity of hydrogen?
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- How is hydrogen detected?
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- Is hydrogen water soluble?
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- What is the specific gravity of oxygen?
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- What is the chemical symbol of oxygen?
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- Is oxgen flamable?
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- When the oxygen level in air considered to be dangerous?
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- What element in the air is essential for life?
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- Write towe advantages of having oxygen in air.
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- What happens when Oxygen reacts with non-metals?
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- Why oxygen is called acid producer?
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- Mention some metals which absorb oxygen.
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- What are the materials required for preparation of oxygen gas from hyd...
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- What are the materials required for preparation of oxygen gas from pot...
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