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1amu (or) 1u prop...

1amu (or) `1u prop`

A

`1.6605xx10^-25 kg`

B

`1.6605xx10^-26kg`

C

`1.6605xx10^-27 kg`

D

`1.6605xx10^-28kg`.

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The correct Answer is:
A, B
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SURA PUBLICATION-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS-ADDITIONAL QUESTIONS ( ADDITIONAL CHOOSE THE CORRECT ANSWERS)
  1. Which form of based on physical characteristics posses neither definit...

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  2. Atoms are too small with diameter of 10^-10 m and weigh approximately

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  3. 1amu (or) 1u prop

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  4. 12 g of carbon -12 contains

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  5. Atomicity of nitrogen is

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  6. Statement I : Equivalent mass of Mg is determined by Oxide Method. S...

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  7. One mole of sulphuric acid contains oxygen atoms.

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  8. Unit of Avogadro's number is

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  9. Assertion : An element that has a fractional atomic mass. Reason : A...

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  10. The empirical formula and melecular mass of a compound are CH2O and 18...

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  11. One 'U' stands for the mass of

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  12. In the reaction NH2+H2O to NH(4)^(+)+Ooverline(H) NH(3) is acidic in n...

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  13. The oxidation number of hydrogen in LiH is .

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  14. The oxidation number of oxygen in O2 is .

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  15. Calculate the percentage of N is ammonia molecule.

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  16. If a beaker holds 576g of water, what will be the gram molecules of wa...

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  17. The oxidation number of chromium in dichromate ion is

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  18. The oxidation state of a element in its uncombined state is

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  19. Fe^(2) to Fe^(3+) +e^(-) is a reaction .

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  20. Assertion : The atomic masses of most of the elements are in fraction....

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