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We breathe in fresh air in the morning w...

We breathe in fresh air in the morning walk is it pure as well ?

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Fresh air may be regarded as pure by an ordinary person but not by a chemist. Actually fresh air is a mixture of number of gases like oxygen, nitrogen, noble gases, carbon dioxide, water vapours etc. It is therefore, not pure from the angle of a chemist.
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DINESH PUBLICATION-MOLE CONCEPT-Concept Based Question
  1. Out of 1 M H(2)SO(4) and 1 N H(2)SO(4), which is more concentrated an...

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  2. Why is the value of Avogadro's number 6.022 xx 10^(23) and not any oth...

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  3. We breathe in fresh air in the morning walk is it pure as well ?

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  4. Are the atomic masses of the elements their actual masses ?

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  5. What do you understand by stoichiometric coefficients in a chemical eq...

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  6. Why is limiting reactant so named ?

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  7. Are the atomic masses of some elements actually fractional ?

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  8. Whay is air not always regarded as homogeneous mixture ?

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

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

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

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

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

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

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

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  16. 32 g of sulphur will react with 32 g of oxygen, even if more than 32 g...

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  17. Is law of conservation of mass always valid ?

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

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  19. What are the SI unit of molarity ?

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  20. How are 0.5 m of NaOH different from 0.5 M of NaOH ?

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