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Hydrogen catches fire easily and oxygen ...

Hydrogen catches fire easily and oxygen helps in combusion. Why is water used for extinguishing fire ?

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Since water `(H_(2)O)` is a compound, its properties are quite different from those of hydrogen and oxygen.
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DINESH PUBLICATION-MOLE CONCEPT-Concept Based Question
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  2. Whay is air not always regarded as homogeneous mixture ?

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  3. Hydrogen catches fire easily and oxygen helps in combusion. Why is wat...

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  4. Statements gives below pertain either to an element or mixture or comp...

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  5. What is an atom according to Dalton's Atomic theory ?

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  6. What is the effect of temperature on molarity of a solution?

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  7. What is the significant of N/10 NaOH solution ?

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  8. Does HCl solution have same value of molarity and normality ?

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  9. In the combustion of methane, why is methane regarded s the limiting r...

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  10. 32 g of sulphur will react with 32 g of oxygen, even if more than 32 g...

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  11. Is law of conservation of mass always valid ?

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  12. Give an example of a molecule in which the ratio of the molecular form...

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  13. What are the SI unit of molarity ?

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  15. What is the difference between 0.05 g and 5.0 xx 10^(-3)g ?

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  17. It the atomic masses of C and S are 12 and 32 respectively, then atom ...

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