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Name the element which is used as a refe...

Name the element which is used as a reference for the atomic masses of the elements.

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The correct Answer is:
`""^(12)C`
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MODERN PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -REVISION EXERCISES (VERY SHORT ANSWER QUESTIONS) (ONE WORD/VERY SHORT SENTENCE ANSWER)
  1. Is the molar volume of NH(3) different from that of CO(2)?

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  2. Name a monoatomic gas. What is its valency ?

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  3. Limiting Reagent

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  4. Write 0.000623 cm in a scientific notation.

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  5. Define the law of multiple proportions, Explain it with two examples. ...

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  6. What is gram molecular mass ? Give one example.

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  7. Give one example each of a molecule in which the empirical and molecul...

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  8. Define mole.

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  9. Balance the equation : CaF(2) + H(2)SO(4) + H(3)BO(3) to CaSO(4) + B...

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  10. How many atoms of carbon are present in 0.1 mole of C12H22O11 ?

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  11. How many hydrogen atoms are present in 60 a.m.u. of ethane ?

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  12. What is meant by one gram of atom of iron ?

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  13. What is the S.I. unit of density ?

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  14. Name the law which deals with the ratios of the volumes of the gaseous...

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  15. Name the element which is used as a reference for the atomic masses of...

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  16. An atom of an element is 13 times heavier than the mass of a carbon at...

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  17. What is the standard for the molecular weights of molecules ?

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  18. What is the ratio of molar volumes of SO(2) and SO(3) ?

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  19. State law of reciprocal proportions.

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  20. What volume will 250 g of mercury occupy ? (Density of mercury =13.6 g...

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