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Experimentally it was found that a metal...

Experimentally it was found that a metal oxide has formula `M_(0.98) O`. Metal M present as `M^(2+)` and `M^(3+)` in its oxide. Fraction of the metal which exists as `M^(3+)` would be:

A

0.0701

B

0.0408

C

0.0605

D

0.0508

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The correct Answer is:
B
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RC MUKHERJEE-ELEMENTARY PROBLEMS BASED ON DEFINITION OF MOLE: THE MOLE CONCEPT -OBJECTIVE PROBLEMS
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  2. The number of atoms present in 16 g of oxygen is:

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  3. 1 mole of a compound contains 1 mole of C and 2 moles of O. The molecu...

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  4. The volume of a gas at 0°C and 700 mm pressure is 760 cc. The number o...

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  5. 1 mole of a diatomic element X2 contains 34 and 40 moles of electrons ...

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  6. 2 moles of H atoms at NTP occupy a volume of:

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  7. Number of electrons in 1.8 grams of H(2)O are

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  8. Molecular weight of a gas, 11.2 litres of which at NTP weighs 14 g, is

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  9. The weight of 1 mole of a gas of density 0.1784 g/L at NTP is

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  10. Number of HCl molecules present in 10 mL of 0.1 N HCl solution is

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  11. Number of atoms in 12 g of ""(6)^(12) C is :

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  12. 5 moles of a gas in a closed vessel was heated from 300 K to 600 K. Th...

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  13. Which of the following contains greatest number of oxygen atoms ? . (a...

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  14. If the atomic weight of carbon is set at 24 amu, the value of the avog...

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  15. If 32 g of O(2) contain 6 022 xx 10^23 molecules at NTP then 32 g of ...

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  16. How many moles of electrons weigh one kilogram?

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  17. Experimentally it was found that a metal oxide has formula M(0.98) O. ...

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  18. The ratio of masses of oxygen and nitrogen of a particular gaseous mix...

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  19. The most abundant amounts by mass in the body of a healthy human adult...

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  20. 1 gram of carbonate (M(2)CO(3)) on treatment with excess HCl produces ...

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