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The isotopes of chlorine with mass numbe...

The isotopes of chlorine with mass numbers 35 and 37 exist in the ratio of

A

`1:1`

B

`2:1`

C

`3:1`

D

`3:2`

Text Solution

Verified by Experts

The correct Answer is:
C
`"Average atomic mass"=(pxxm_(1)+(100-p)m_(2))/(100)`
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NARAYNA-SOME BASIC CONCEPTS OF CHEMISTRY-EXERCISE - I (C.W)(MOLE CONCEPT ATOMIC MASS, MOLECULAR MASS, AVOGADRO NUMBER)
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  2. The number of atoms in 4.25 g of NH(3) is approximately

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  3. 12 gm of an alkaline earth metal gives 14.8 g of its nitride. The atom...

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  4. The isotopes of chlorine with mass numbers 35 and 37 exist in the rati...

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  5. The gas having same number of molecules as 16g of oxygen is

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  6. The weight of gaseous mixture containing 6.02xx10^(23) molecules of ni...

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  7. The density of a gas at S.T.P. is 1.40 grams per litre. The molecular ...

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  8. The no. of electrons present in one mole of Azide ion are (N3)^-1

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  9. If the mass of an electron is 9 xx 10^(-28) grams weight of one mole o...

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  10. If the weight of 5.6 litres of a gas at N.T.P. is 11 gram. The gas may...

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  11. Number of milli moles in 1.0 gram of water

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  12. Which of the following contains maximum number of molecules

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  13. A pair of gasses having same number of molecules are

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  14. The total volume of mixture of 2 gms of helium and 7 gms of nitrogen u...

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  15. The number of atoms present in 10 gms of CaCO(3) are

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  16. How many molecules are present in one in one gram of hydrogen?

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  17. The mass of 1.205 xx 10^(22) molecules of ammonia is

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  18. The total number of protons in 10g of calcium carbonate is (N(0) = 6.0...

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  19. The volume of a gas in discharge tube is 1.12 xx 10^(-7) ml, at 0^(@)C...

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  20. Elements A and B form two compounds B2​A3 and B2​A. If 0.05 moles of ...

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