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If water sample are taken from sea, rive...

If water sample are taken from sea, rivers or lake, they will be found to contain hydrogen and oxygen in the approximate ratio of `1 : 8`. This indicates the law of :

A

law of conseravtion of mass

B

Definite proporation

C

Reciprocal propoertions

D

None of these

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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.31 To Q.60)
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  2. A mixture of O(2) and gas "Y" ( mol. wt. 80) in the mole ratio a:b ha...

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  3. If water sample are taken from sea, rivers or lake, they will be found...

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  4. Hydrogen and oxygen combine to from H(2) O(2) and H(2)O containing 5....

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  5. Which one the following combinations illustrate law of reciprocal p...

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  6. Carbon and oxygen combine to form two oxides, carbon monoxide and carb...

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  7. A sample of calcium carbonate (CaCO3) has the following percentage co...

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  8. The law of multiple proportion is illustrated by the two compounds a) ...

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  9. All the substance listed below are fertilizers that contribute nitroge...

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  10. One mole of element X has 0.444 times the mass of one mole of element ...

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  11. A given sample of pure compound cotains 9.81 gm of Zn,1.8 xx 10^23 ato...

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  12. The formula of an acid is HXO2. The mass of 0.0242 moles of the acid i...

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  13. What is the empirical formula of vanadium oxide if 2.74g of the metal ...

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  14. Determine the empirical fromula of kelvar, used in making bullet proof...

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  15. The hydrate salt Na2 CO3.xH2O undergoes 63%loss in mass on heating and...

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  16. A 6.85g sample of the hydratedSr(OH)2.x H2O is dried in an oven to giv...

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  17. What percentage of oxygen is present in the compound CACO3.3Ca3(PO4)2?

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  18. Deildrin, an insecticide, contains C,H,Cl and O. Combustion of 29.72 m...

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  19. A gaseous compound is composed of 85.7% by mass carbon and 14.3% by ma...

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  20. Complete combustion of 0.858 g of compound X given 2.64g of CO2 and 1....

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