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Choose the correct statement The use "...

Choose the correct statement
The use `""^(12)C` Scale has suspended the older scale of atomic mass based in ""^16O` isotope, one important advantage of the former being

A

the atomic masses on `""^12C` scale became whole numbers.

B

`""^12C` is more abundant in the earth"s crust than `""^16O`

C

The difference between the physical and chemical atomic masses got narrowed down significantly

D

`""^12C` is situated midway between metals and non-metals in the periodic table

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The correct Answer is:
B
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NARAYNA-SOME BASIC CONCEPTS OF CHEMISTRY-C.U.Q
  1. Which of the following is a penta - atomic molecule

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  2. If 1//6, in place of 1//12, mass of carbon atom is taken to be the rel...

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  3. Choose the correct statement The use ""^(12)C Scale has suspended th...

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  4. Which one of the following properties of an element is not variable ?

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  5. 10 grams of each O(2),N(2) and Cl(2) are kept in three bottles. The co...

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  6. The atomicity of a species is x and its atomic weight is y. The molecu...

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  7. Avagadro's number is the number of molecules present in

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  8. Atomicity is the number of

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  9. One amu is equal to

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  10. The number of molecules present in one milli litre of a gas at STP is...

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  11. The vapour density of gas is 22. it cannot be

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  12. The mass of 112cm^(3) of methane at STP

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  13. The vapour density of a gas is 11.2. The volume occupied by 11.2 gms o...

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  14. Substance having more number of moles is

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  15. Atomicity of oleum (H(2)S(2)O(7)) is

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  16. Equivalent weight of Calcium metal is

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  17. Equivalent weight of Potassiumpermaganate in strong alkaline medium is

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  18. Equivalent weight of N(2)H(4) is

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  19. Equivalent weight of H(2)S is equal to the equivalent weight of

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  20. The number of parts by mass of the element or compound which combines ...

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